Develop Bugs

Airave works great

Out of curiosity, who here has an airave? My mother got hers yesterday for free for being a loyal customer for 11 years and also because of her horrible coverage in her home. I actually called customer service to see if she was eligible and she was. She used to get 1 to 2 signal bars on her epic 4g touch and now she gets full bars. Her 3g speeds went up 1.5 mbps from .3mbps. She's pretty happy with her airave . I also find out that they are planning to build a sprint tower about 20 minutes away off the highway from where she lives. No reason to leave sprint anyone time soon . Hell if the Tmobile and AT&T merger happens and I hope it doesn't, I'm heading to Sprint.

I don't know about Sprints version but we've used an At&t microcell for over a year with little to no issues. Had to pay $150 for the damn thing but it's been great. They should work similarly.
Sent from my MB860 using XDA App

Have had ours for some time now. Had a couple issues with it, but was always resolved within a timely manner. Without out ours here in the home, we'd see 1 bar if that. Got ours free from the problems that we've had signal wise.

Got an airave v2 from sprint for free since my basement drops calls, works great throughout the entire house, sometimes it doesn't switch properly to the sprint tower when I get out of range outside and drops though, but that's a rarity
Sent from my sprint galaxy s2

I have a new version Airave in my home (got it for free from Sprint cuz of poor signal quality indoors), and it works very well.

That's great that some have it especially for free. One question, does anyone have the GPS blinking green. When I first set it up it stopped blinking green and noticed now that it's blinking. I don't have the airave near a window nor elevated because of how her computer is set up and located. Should I bother connecting the external GPS or just not worry about it. My mother won't use her GPS whatsoever. Thanks.

Gps has to get a signal before airave will recieve data. As well as in highest level of support every call was airave. They work for a while and stop. We had an airave dept, but the calls were in the 100's every hr. We had to take all the overflow airave calls. Hate those things!
Sent from my SPH-D710 using xda premium

I used mine without the extra gps ant. For a few months with mixed results. After a while I noticed the gps light flashed often, so I hooked up the external Gps reciever. Night and day diffrence. The airave never skips a beat, and signal is 100 fold better.
Sent from my SPH-D700 using XDA App

I can't get my airave to work. I have it after the router and the GPS and Mobile lights are still blinking.

love my airvana
if your having issues put it before the router

Airave here. I like it and it works. Was free via sprint rep
Sent from my Epic Touch 4G

I want it after the router. I dont want to use the Airave's routing capabilities since I already have it set up on my linksys router.
I've read that you that you can just plug it in and it should work. I have tried changing the IP, etc. So far nothing.

geto234 said:
I can't get my airave to work. I have it after the router and the GPS and Mobile lights are still blinking.
Click to expand...
Click to collapse
It needs to be close to a window or attach the GPS antenna to a window. Also first time plug in could take hours to go solid lights.
Sent from my SPH-D710 using Tapatalk

geto234 said:
I want it after the router. I dont want to use the Airave's routing capabilities since I already have it set up on my linksys router.
I've read that you that you can just plug it in and it should work. I have tried changing the IP, etc. So far nothing.
Click to expand...
Click to collapse
I want to have it after the router as well, and thats where mine is; however, in a situation like yours where your trying to fix a problem its time to troubleshoot. If you put it before the router and it works then you've identified where the problem lies...

I have 2 of them Since i have a large family on my account that live in 2 different cities they gave me a second one free.I love them while in house i get great download speed and calls are not a issue.
I got it more for the download speed then anything else plus helps with tether

rdcrds said:
I have 2 of them Since i have a large family on my account that live in 2 different cities they gave me a second one free.I love them while in house i get great download speed and calls are not a issue.
I got it more for the download speed then anything else plus helps with tether
Click to expand...
Click to collapse
Wait... Your tethering from your phone which gets its signal from the airave which gets its signal from your home Internet connection?
I see two middle men that can be cut out of this equation
Sent from my Samsung Galaxy S2

I too have crappy signal at home. For those who have gotten unit from Sprint free do you still have to pay the monthly airwave fee? Seems to be unfair since you are using your own internet service provider to hook the airwave to.

Docarut said:
I too have crappy signal at home. For those who have gotten unit from Sprint free do you still have to pay the monthly airwave fee? Seems to be unfair since you are using your own internet service provider to hook the airwave to.
Click to expand...
Click to collapse
I pay nothing
Sent from my Samsung Galaxy S2

By the way to all of you who want it after a Router, I have mine setup after a Router. The steps are easy just gotta port-forward. Google it =)

I did google. I also have the ports forwarded. The mobile and GPS leds are still blinking. It might come down to my charter service is not that great for VOIP (I even have OOMA too). I suspect it's that.
Shoulon, what steps did you do for after router setup?
Thank you.

Sprint Airave tech finally confirms an issue between S3 LG2 modem and Airave!

I have been talking to Sprint everyday since LG2 was released. Nothing but problems staying connected to Airave. Sometimes I loose 3g for hours, sometimes it drops to 1x, and sometimes voice and data are lost. So, I'm back on LF9 modem as it seems to be the best modem right now. They have done every test on Airave possible, communication between them and Airave is perfect. My brother has HTC EVO LTE and when he comes over, he has none of these issues on Airave. Pretty much narrows it down to the S3 modem itself or modem firmware.

joeyhdownsouth said:
I have been talking to Sprint everyday since LG2 was released. Nothing but problems staying connected to Airave. Sometimes I loose 3g for hours, sometimes it drops to 1x, and sometimes voice and data are lost. So, I'm back on LF9 modem as it seems to be the best modem right now. They have done every test on Airave possible, communication between them and Airave is perfect. My brother has HTC EVO LTE and when he comes over, he has none of these issues on Airave. Pretty much narrows it down to the S3 modem itself or modem firmware.
Click to expand...
Click to collapse
i have lg2 modem and my airave works fine..never had problems

eyecon82 said:
i have lg2 modem and my airave works fine..never had problems
Click to expand...
Click to collapse
I wish I could say the same, LF9 working better, could be my ISP also, recently found out Lousiana Suddenlink customers statewide had internet issues.
this message brought to you by my GalaxyS3

My GS3 will only connect to my Airave for data, not voice. Power cycled both the Airave and the phone multiple times and nothing I do can get the thing to use the Airave for voice. I can still call out and receive calls, but i'm connected to a native Sprint tower. I don't get the usual tone you hear when you're connected to an Airave, the mobile light doesn't blink, and there's zero bandwidth usage on my router when calling. I can verify through my router that it is definitely connected to the Airave for 3G data though as I can almost peg my slow-ass 1.5 mbps DSL.

My Airave connects fine, but is as bad as it's ever really been. Only get about one or two walls worth of penetration with the stupid thing, it's pretty worthless in larger homes. In 2 bedrooms, the back yard, garage, and office the Airave just causes dropped calls. What I could use is a "Roaming Only" button, as there is very strong Verizon service in the area (those handful of times the phone goes to roaming are very good times).
This happens with the OG Epic, E4GT, GS3, iPhone 4S, and an old blackberry. If only they allowed us to up the xmit power on the things or install better antenna's.

I had LG2 and my airave was working okay. I have lg8 now and it seem to be working the same.

Sprint is sending me the new 2.5 airave device to replace my 2.0 one should have it shortly. Hopefully the new software in the 2.5 will work better. Been having your same issue since I got the device on lf9
Sent from my SPH-L710 using xda premium

Can you physically tell a difference on the 2.5 from the 2.0. I recently got a new airave and was wondering which one I got.
Sent from my C64 w/Epyx FastLoad cartridge

Seems like most people have had a decent experience with the Airave? I just ordered one off of ebay. Hoping to get more than 1 freaking bar in my apartment. I drop calls all the time and I have to go outside or stand near a window to get more than one bar. Hoping this will get me a couple more bars. Only spent 37$ for it...so it's not a huge loss if it doesn't work as advertised. I tried to get one free from sprint but alas, they however did say they would pay the 5$ or whatever it is per month so hopefully they'll still do (been a few mths) that when I call them up and tell them I have an Airave.

Yes the 2.5 is smaller and will have airave 2.5 on it. But now I'm running into an issue to where the GPS is saying I am in Austin when I am 20 minutes from downtown Dallas. Call quality has increased but data drop still to 1xrtt however it does pick back up evdo rev a quicker.
Sent from my SPH-L710 using xda premium

Here is a pic
Sent from my SPH-L710 using xda premium

blazerboy567 said:
Yes the 2.5 is smaller and will have airave 2.5 on it. But now I'm running into an issue to where the GPS is saying I am in Austin when I am 20 minutes from downtown Dallas. Call quality has increased but data drop still to 1xrtt however it does pick back up evdo rev a quicker.
Sent from my SPH-L710 using xda premium
Click to expand...
Click to collapse
I dont understand why people care if it has 1xrtt or evo rev a, or whatever!!
just turn on the darn wifi and who cares!

I don't pay sprint for data usage and pay Verizon fios for data for nothing. Plus I game don't need excessive bandwidth sucking my latency. Plus the arrive only uses a small amount of bandwidth to convert ur isp signal to evdo rev a
Sent from my SPH-L710 using xda premium

blazerboy567 said:
I don't pay sprint for data usage and pay Verizon fios for data for nothing. Plus I game don't need excessive bandwidth sucking my latency. Plus the arrive only uses a small amount of bandwidth to convert ur isp signal to evdo rev a
Sent from my SPH-L710 using xda premium
Click to expand...
Click to collapse
that still doesn't explain why one can't just turn on the wifi? you are saying too much bandwidth speed is not good?

Pc gaming not on the phone lol
Sent from my SPH-L710 using xda premium

blazerboy567 said:
Pc gaming not on the phone lol
Sent from my SPH-L710 using xda premium
Click to expand...
Click to collapse
ah ok.....i get it..you want to save bandwidth for your PC...lol..sorry..my bad
that makes sense...but when people try to use 3g data and complain from an airave, it's a moot point because most phones have wifi now

Yep add tends to stop me from typing in details lmao
Sent from my SPH-L710 using xda premium

Stock LG2
Sprint sent me an Airave due to poor signal at work. I use WiFi for data while I'm at work so that has never been an issue. I installed it in my server room (one wall between my office and the Airave) and I get full bars. I walk to my company's neighbor which is connected to our buisness and it drops to two bars (three wall and about 40' destance). The signal does drop but its still usable. Over all I am very happy with the product.

Does anyone have any specs on the differences between the 2.0 and 2.5?
Personally I hope they fix the issue of it needing to be in FRONT of your router (right off the modem). Or at least make it so the airraves internal router boots up first before it tries to connect to the sprint service.
Should my device lose power I always lose internet for about 15-20 min while the stupid device boots up and connects... Thankfullyl i'm on a battery backup, but it can be annoying.

DroidGnome said:
Does anyone have any specs on the differences between the 2.0 and 2.5?
Personally I hope they fix the issue of it needing to be in FRONT of your router (right off the modem). Or at least make it so the airraves internal router boots up first before it tries to connect to the sprint service.
Should my device lose power I always lose internet for about 15-20 min while the stupid device boots up and connects... Thankfullyl i'm on a battery backup, but it can be annoying.
Click to expand...
Click to collapse
i have the old one and I don't need to keep it in front of the router...i just plug it in the router like I plug in my computer to the router

3G - 4G handshake issues?

So Raleigh finally has a few LTE towers active, and with the help of Sensorly I know where those are.
Seems though half the time it doesn't connect. I know it's not a tower issue, as if I turn on airplane mode on then off it will connect to 4G just fine.
I noticed under settings there's the Sprint optimize connection thing. Turning that on/off seems to have no difference.
Is there a file somewhere that I can edit to change the default connection lookup time? Since LTE is different from WiMax, where you don't "really" have control over the 4G radio, I'm assuming there is a time-out feature. A specified amount of time it takes before looking for an LTE signal. If this is true, is there a way to edit that to speed it up just a little bit? Say going from 10 minutes to 5 minutes? I'm not worried about battery life. I can't kill this thing in a day anyways and I'm lucky to have access to power 7/10ths of my work day.
Also I'm not sure if this is related to MA7, Deodexed stock ROM, or what but I am having issues with coming off Wifi to 3G, and 3G not being active. Have to cycle airplane mode a few times to get it to work.

I'm rooted with stock and although my my phone switches fine between Wi-Fi and 3g I did have a little trouble switching between 3g and 4g. One thing I did that helped was switch the mobile network to 3g only then after it reboots switch back to the 3g,lte network, after reboot run a prl update. That may fix your issue. The problem may also be Sprint is still not done boosting the strength on the 4g towers and is still testing them.
Sent from my Amazing Galaxy Note 2!

I am having no problems going to 4g from 3g or 3g from 4g but they are pretty far in my area. That might be the problem is there not that far by you
Sent from my SPH-L900 using xda app-developers app

Folks,
Your phone will connect to the strongest signal possible....if LTE is stronger it will connect and vice versa. When you toggle your airplane mode or power off/on it scans for everything at that time and will scan LTE and connect even if its weaker. As areas become more saturated it will connect easier
Edit:also turn off the sprint connection optimizer
Sent from my SPH-L900 using Tapatalk 2

neopolotin75 said:
Folks,
Your phone will connect to the strongest signal possible....if LTE is stronger it will connect and vice versa. When you toggle your airplane mode or power off/on it scans for everything at that time and will scan LTE and connect even if its weaker. As areas become more saturated it will connect easier
Edit:also turn off the sprint connection optimizer
Sent from my SPH-L900 using Tapatalk 2
Click to expand...
Click to collapse
I understand that. My question pertains to how long in between scans for LTE (I've read anywhere between 10 minutes and 30 minutes) and whetheror not that time can be changed on a rooted phone.
What exactly does the sprint connection optimizer do?
Sent from my Galaxy Note 2 using Tapatalk 2

poor_red_neck said:
I understand that. My question pertains to how long in between scans for LTE (I've read anywhere between 10 minutes and 30 minutes) and whetheror not that time can be changed on a rooted phone.
What exactly does the sprint connection optimizer do?
Sent from my Galaxy Note 2 using Tapatalk 2
Click to expand...
Click to collapse
Well the note 2 scans pretty quick...id say <5 mins or so. I can leave my station where theres no lte and drive 1-2 miles and be connected. Once it loses lte it seems to reconnect in under a min. The connection optimizer scans available wifi hotspots and attempts to offload your data on wifi networks you have used before. Ive heard that it connects to wifi spots that you havenrt xonnected before but I havent seen this. It will cut your wifi on periodically to check and so forth. I uncheck mine and freeze it in titanium. ...personally I think it isnt needed and is a waste.
Sent from my SPH-L900 using Tapatalk 2

Ok cool. So you didnt notice any change with 4g connectivity with the sprint optimizer disabled?
I guess theyre just still working on the towers. My maket hasnt officiallyblaunched yet but close to 1/4 of the city's got connectivity.
Sent from my Galaxy Note 2 using Tapatalk 2

poor_red_neck said:
Ok cool. So you didnt notice any change with 4g connectivity with the sprint optimizer disabled?
I guess theyre just still working on the towers. My maket hasnt officiallyblaunched yet but close to 1/4 of the city's got connectivity.
Sent from my Galaxy Note 2 using Tapatalk 2
Click to expand...
Click to collapse
I havent had any issues connecting to 4g with it turned off. I think here in Indy we are like the 40-50% or so and its pretty lit up.
Sent from my SPH-L900 using Tapatalk 2

neopolotin75 said:
Folks,
Your phone will connect to the strongest signal possible....if LTE is stronger it will connect and vice versa. When you toggle your airplane mode or power off/on it scans for everything at that time and will scan LTE and connect even if its weaker. As areas become more saturated it will connect easier
Edit:also turn off the sprint connection optimizer
Sent from my SPH-L900 using Tapatalk 2
Click to expand...
Click to collapse
Not true. Your phones data connection is set in a priority order. Wifi is #1 and overrides all, 4G is #2 (will override 3G and 2G even if it's a crappy 4G signal), 3G #3, followed by 2G as the final drop back if none of the others are available.
Sent from my SPH-L900 using xda app-developers app

RayTrue04 said:
Not true. Your phones data connection is set in a priority order. Wifi is #1 and overrides all, 4G is #2 (will override 3G and 2G even if it's a crappy 4G signal), 3G #3, followed by 2G as the final drop back if none of the others are available.
Sent from my SPH-L900 using xda app-developers app
Click to expand...
Click to collapse
Ummm....what u talkin bout willis? Thats what I said.....scans everything and will connect to lte even if its weaker than 3g.
Sent from my SPH-L900 using Tapatalk 2

neopolotin75 said:
Ummm....what u talkin bout willis? Thats what I said.....scans everything and will connect to lte even if its weaker than 3g.
Sent from my SPH-L900 using Tapatalk 2
Click to expand...
Click to collapse
Oh I should've read that thoroughly. I see what you did there. First you were like it connects to the strongest signal possible then you were like it connects to 4G even if it's a weaker signal... What a way to contradict yourself kinda makes no sense which is why the confusion.
Sent from my SPH-L900 using xda app-developers app

RayTrue04 said:
Oh I should've read that thoroughly. I see what you did there. First you were like it connects to the strongest signal possible then you were like it connects to 4G even if it's a weaker signal... What a way to contradict yourself kinda makes no sense which is why the confusion.
Sent from my SPH-L900 using xda app-developers app
Click to expand...
Click to collapse
You said the samething I did except you said the order of the scan.......guess I should have put the scan order in....next time ill proof read it so I dont contradict myself, cause confusion or brain hemorraging :thumbup:
Sent from my SPH-L900 using Tapatalk 2

Signal Booster...

Has anybody ever used a signal booster? My apartment gets a really weak data signal, but if I walk outside into the parking lot I'm getting H+. I know at one time, T-mobile "gave" out signal boosters to customers living in a house. No love for apartments or townhouses. I've seen plenty boosters at Amazon, but just wanted to see if any of you have first hand knowledge. Thanks a lot!
Sent from my SGH-T999 using xda premium

Indoor Wilson's booster are the best. They are expensive but totally worth it. I work in the oilfields, we all have them in our living headquarters and work great.

I have something similar to this:
http://www.ebay.co.uk/itm/GSM-DCS-9...ell_Phone_Signal_Boosters&hash=item41746bce11
It works really well on the 1st floor, weaker on the ground floor but still makes a difference between a dropped call and being able to talk. If you adda a splitter and a 2nd aerial for the ground floor then that would sort that out. I have had to reboot it about 4-5 times in the year or so that I have had it though. It seems to happen when too many phones are in the area, like family visiting etc.... So 10-15 mobiles in the house all on. Generally about 4-6 and no problems there.

Google "femtocell'. It might be what you're after.
Sent from my GT-I9300 using Tapatalk 4 Beta

Um is there no Wi-Fi? I mean even most boosters use the internet
Sent from my GS3

irock1985 said:
Um is there no Wi-Fi? I mean even most boosters use the internet
Sent from my GS3
Click to expand...
Click to collapse
Never seen a signal booster that needs internet for it to work.
Sent from my SGH-T999 using xda app-developers app

Well I'm on Sprint so things may be different but yes I have a booster and to get data (3g/4g) boost it has to be connected to the internet
Sent from my GS3

Signal boosters (repeaters) don't need Internet. Airaves do.
Sent from my SPH-L710 using xda app-developers app

A microcell uses the internet to create a WiFi AP sized cell site. Similar in practical result to a repeater, but a repeater or amplifier just amplifies or repeats a signal from a normal cell tower. Generally a microcell will be better if you have an available Internet connection, but a repeater will be much more flexible.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 4 Beta

I've got an Airave at my house to try to boost it. They're unfortunately hit and miss and it doesn't do so well in my area.

I've seen a video once, where a guy uses a can to strengthen the wi-fi signal. Haven't tried it myself, but I thought you should consider it since it's free.

bigkusi said:
I've seen a video once, where a guy uses a can to strengthen the wi-fi signal. Haven't tried it myself, but I thought you should consider it since it's free.
Click to expand...
Click to collapse
I've heard about this too, essentially you make it a makeshift satellite dish for your router from what I understand

[Q] Wifi calling range

I am currently running the latest version of Wicked rom. I have been using T-mobile for the last few years on several different phones. I need to use stock based roms with wifi calling due to the fact I have no cell signal in or around my home. I have been using my Galaxy S3 for the last couple of months , and I just don't get the range from wifi calling like I have with my other T-Mobile phones. When I get down to 2 bars of wifi signal my S3 drops wifi calling and searches for cell signal. This greatly reduces my wifi calling range around my house.All of my other T-Mobile phones keep wifi calling active until I completely lose wifi signal. Is there a script or tweak that can be made to make wifi calling active until wifi signal is lost? I have searched many times but I just can't seem to find any info. Any help would be greatly appreciated

Settings - More Networks - WiFi calling - Connection Preferences
Sent from my SGH-T999 using Tapatalk

chreiton said:
I am currently running the latest version of Wicked rom. I have been using T-mobile for the last few years on several different phones. I need to use stock based roms with wifi calling due to the fact I have no cell signal in or around my home. I have been using my Galaxy S3 for the last couple of months , and I just don't get the range from wifi calling like I have with my other T-Mobile phones. When I get down to 2 bars of wifi signal my S3 drops wifi calling and searches for cell signal. This greatly reduces my wifi calling range around my house.All of my other T-Mobile phones keep wifi calling active until I completely lose wifi signal. Is there a script or tweak that can be made to make wifi calling active until wifi signal is lost? I have searched many times but I just can't seem to find any info. Any help would be greatly appreciated
Click to expand...
Click to collapse
Aside from Doc successfully answering your question, you may wish to check this out. It should increase the WiFi range of your S3 in exchange for a little of your battery.
http://gs3.wonderhowto.com/how-to/pick-up-better-wi-fi-signal-your-samsung-galaxy-s3-0144988/
(Works on stock only too)

TheLastSidekick said:
Aside from Doc successfully answering your question, you may wish to check this out. It should increase the WiFi range of your S3 in exchange for a little of your battery.
http://gs3.wonderhowto.com/how-to/pick-up-better-wi-fi-signal-your-samsung-galaxy-s3-0144988/
(Works on stock only too)
Click to expand...
Click to collapse
Wow! I had long forgot about that! The only issue here is you will have to redo this every time you reboot as it does not stick. I spent a good bit of time on this back on ICS, but ended up moving on to other things. I just tested and on 4.3, it does work by just entering *#0011#, but as has always been the case, it turns back on if you reboot.
Sent from my SGH-T999 using Tapatalk
---------- Post added at 02:02 AM ---------- Previous post was at 01:59 AM ----------
Kinda funny to me how I keep seeing "New" info and discoveries when it was known about a year and a half ago! Lol. But then, I did forget about it....
Sent from my SGH-T999 using Tapatalk

DocHoliday77 said:
Settings - More Networks - WiFi calling - Connection Preferences
Sent from my SGH-T999 using Tapatalk
Click to expand...
Click to collapse
Thank you for you response. I changed the settings in connection preferences, but i'm still not getting what i'm looking for. Even when I set my phone to wifi calling only, the S3 still drops wifi calling with 2 bars of wifi signal left. It must have something to do with the S3 wifi calling app itself. With my last 3 T-mobile phones which were a G2x, exhibit 4g and optimus L9 I was able to get 100ft + outside my house before I lost wifi calling. With the S3 i cant even get 5 feet and I lose it.

chreiton said:
Thank you for you response. I changed the settings in connection preferences, but i'm still not getting what i'm looking for. Even when I set my phone to wifi calling only, the S3 still drops wifi calling with 2 bars of wifi signal left. It must have something to do with the S3 wifi calling app itself. With my last 3 T-mobile phones which were a G2x, exhibit 4g and optimus L9 I was able to get 100ft + outside my house before I lost wifi calling. With the S3 i cant even get 5 feet and I lose it.
Click to expand...
Click to collapse
I've found the wifi signal indicator to be far from accurate in terms of signal strength. For example, when you are at 3 bars, the signal strength might be at 30-40% already. 2 bars is a very weak signal, which is why wifi calling is disabling itself.
There are a couple things you can try. First is getting on the MD5 train. Flash an MD5 ROM along with the MD5 firmware. Get the firmware here: https://db.tt/5C5M8FpD. WARNING, it is the for SGH-T999 only and will brick you if you have a variant (n/l/v) For ROM, S3Rx or Dandroid, if I'm recommending.
Also, check with your router to verify which standard the phone is using. 2.4GHz has a longer range than 5GHz. Also, make sure it's not using 802.11b. Mine was doing this. Had to disable it in the router.
Keep the router away from other electronics, elevate it as much as possible. If the router has external antennas (like the Linksys WRT54GL), you can get high gain antennas (which do help if you know what you're doing), but aiming them properly is important. http://weekendtechnotes.files.wordpress.com/2012/11/antennaradiationpattern2.jpg for reference. Understanding how the signals work may help you in your situation. And remember, the more walls and objects the signal has to penetrate to get to your device, the weaker it gets. A few walls can easily half it's effective range. I don't know what router you are using so no more on this for now.
That's about all the information that I can give you without knowing more about your situation.

Great info from aerowinder! To add, if you are up for it, install inSSIDer from the store. Make sure you aren't using a heavily crowded WiFi channel. Should be easy enough for most to just look at its graphs and know if it's overcrowded.
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