[Q] Weak WiFi Signal - G3 Q&A, Help & Troubleshooting

I've had the phone for about 10 days and I've consistently noticed that my G3 has a much weaker wifi signal than other phones, both at work and at home. At my house about 5 feet away from the router it was registering 1 bar on the 5Ghz network and about 2 or 3 bars on the 2.4 Ghz. Being that close to the router it should be full! The 5Ghz also has problems staying connected. At work where I used to have full bars with my GS4 and other phones and now I only get 1 or 2. While I haven't had the same problem as others with wifi dropping, it is rather annoying that the signal is so much weaker and I have noticed that with the reduced signal strength my connections are slower. I really hope its a software issue and not hardware related. I'm seriously thinking about going to T-Mobile and asking them to look into it.

Related

Desire - T-mobile signal problem

I have just got my desire on T-Mobile, and am happy with the phone. But the signal strength both on my wifi and phone signal is very week. I was originally on T-Mobile for many years and never had a signal problem at home, so I tried my sim in an old Nokia and I am getting full bars, in my desire it fluctuates between 1-3 bars. I also have an N-router set up and get perfect coverage right across the house with all my wifi devices, but not the desire, even if I am only a few feet away from my router the best I can get is about 50% strength.
Is there a problem with the firmware, or do I have hardware issue, any comments welcome.

Crappy wifi?

I'm running Damage Control 3.2.3 since I got the Evo about a month ago so I don't have too much time running the stock ROM.
I've noticed the wifi signal sucks! I can be using the wifi sitting on the couch a few from the router and my signal dropouts out every so often. I'm also running the latest radio (2.05.00.06.10).
Anyone have wifi issues?
Sent from my PC36100 using XDA App
Mine isn't THAT bad. But I have noticed the signal seems abnormally lower than other devices. And there are places where I can't even see a wifi signal that other devices can see and connect to.
Anyone have any insight as to why our Evo's arent good with Wifi Reception ?
problems with wifi, reset router.
I had problems with my wifi signal. thought that it was because of my flashing back and worth from rom to rom. Finally, decided to reset my router and voila! signal problems were gone.
this is totally non-specific to a router.
My laptop had full strength. My evo has one bar. Same thing at home, other people's homes, hot spots, etc. My friends iPhone picks up wifi signals i can't even see. It's pretty annoying. Probably just an inferior antenna inside the phone.

wifi weak( 20db less)

Wifi range has been terrible on this phone. I tried messing with my router settings for a while and thought maybe some phones are better than others but i lose my wifi calling too easily so I installed a wifi analyzer app and compared to my moms galaxy S 4g and my laptop. My network and the half dozen networks around me show the the same relative strengths but minus 20 db on the defy. Near or far g or n open or secured its pretty consistent -20 in comparison for each network i can see. I can get full bars of the wifi icon on defy but only with line of sight to the router.
Is this a known defect? If i return this phone is there a good chance that i'll get another one with bad wifi? I don't think there's too many defys left in the store.
Im running stock rom still so i don't think its a software problem.

Samsung Galaxy S3 i747 Wi-Fi+Connection ISSUE!!!!

I used my Galaxy S3 a few weeks ago
It is the Rogers i747m Galaxy S3 LTE
The major issues I am having are:
Weak Wi-Fi: the Wi-Fi is weaker than my iPad 3... It disconnects and connects... Even in my living room, next door from my router, my signal is either 1 bar or 0 bar for Wi-Fi, and sometimes it disconnects... My iPad in the same living room gets around 2/3 or 3/3 bars
Weak Cellular Reception: the weak cell signal is also an issue... It is not as weak as dropping my calls, but it is weak and slows down my data speeds...I am using in the wide open in Scarborough in Toronto, there are no high rise buildings.. On 2G, I get full bars... On 3G, I get a bar less than full. On 3.5G (HSPA+), I get 2 bars to half bars. And on 4G LTE, I get 2 bars or even worse no bars and it switches back to 3G or 3.5G HSPA+...
Never had these Wi-Fi and cellular signal issues with my Samsung Captivate and Samsung Wave S8500.....
Anyone can tell my if my phone is defective?
Or is this the phone hardware issue and it widespread with the North American LTE variant of the Galaxy S3?
Thanks.
Good Question, one of which I like to know myself. I'm in the west end (Brampton (for now lol) ), it seems like the signal strength varies even in the same city with only a 3 min drive apart and no tall building in sight lol. I'm talking 1248 kbps to 31743 kbps download.
Not sure about the cellular signal but the WiFi connecting and disconnecting is a known issue(by us, not sure if Samsung) and is being worked on. http://forum.xda-developers.com/showthread.php?t=1790187
Following the instructions in the OP fixes it for me but when I reboot the device, problem is back.
I haven't had any WiFi issues. I don't use it a lot. But I was testing it out tonight and it hasn't disconnected on me at all. I'll keep testing it out
and let you know if I lose WiFi connection. I do recall when I had the S2 i9100, I was losing WiFi connection quite a bit. I wonder if this is a random Samsung device issue? Or could it be an issue with the type of router you have?
Wirelessgirl said:
I haven't had any WiFi issues. I don't use it a lot. But I was testing it out tonight and it hasn't disconnected on me at all. I'll keep testing it out
and let you know if I lose WiFi connection. I do recall when I had the S2 i9100, I was losing WiFi connection quite a bit. I wonder if this is a random Samsung device issue? Or could it be an issue with the type of router you have?
Click to expand...
Click to collapse
If you have this issue, you'll notice right away as it'll connect and disconnect you every 5 seconds or so. I've only noticed it with one WAP and that's one at work, at home and elsewhere it works fine.
I am getting weak Wi-Fi signals around 0-2 bars.. And it disconnects sometimes at random but not as often as 5 seconds though...
Also, the question with the Wi-Fi issue being mass spread might be the International Tegra 3 version
The North American GS3 used the Qualcomm 89xx with has integrated Wi-Fi.. Possibly the North American model use a different antenna design...
I barely talk on my phone but the bars are about the same levels as my iphone 3gs before it was. My wifi I use it in 5ghz, and across my apartment, through 2 walls, im getting near wired speeds.
No issues with wifi here. I at least that I've noticed seems about the same compared to my iPhone and transformer tablet..
for me I am using it on wireless N on the 2.4 ghz band
I have yet to try on a 5 ghz band wireless N
My WiFi feels like it can go 1mb/second..
I do sometimes get roaming messages when I'm at home which confuses the heel out of me
Sent from my SGH-I747M using xda premium
I just accessed the *#0011# and turned the Wi-Fi Power Save to OFF and my S3 Power Save is also OFF
Wi-Fi signal is still VERY WEAK 1-2 bars and sometimes no bars... Did a Speedtest and got around 3Mbits/sec downlink and around 0.2Mbits/sec uplink...
On my laptop, I am getting 19Mbits/sec down and around 8Mbits/sec up.....
I checked the service menu's Wi-fi Information page on my S3 via dialing *#0011# -> MENU softkey -> WiFi
In the Wi-Fi Information, it shows my phone is connected to my router using 802.11b ONLY
What the heck??? ICS Software glitch???
You are getting 1MB/sec down ??!?
Damn how do you do it??
It seems like the North American GS3 with the Qualcomm LTE chip suffers the same Wi-Fi as the International version
Check thread: http://forum.xda-developers.com/showthread.php?t=1724838&page=6
But you must have a good Wi-Fi unit.. I will go to the store and exchange my White S3 i737m tomorrow and see if the Wi-Fi problem still persists..
Before you exchange your phone, could it be your router? Did you test your phone out with a different router or in someone else's house? I have no issues with mine. Like I said in my previous post, I had issues with WiFi on my S2. So I'm thinking it's a random Samsung issue with certain routers.
I have 3 different routers at home
1. Standard D-Link Dual-band N router which I bought last year
2. D-Link Xtreme N
3. Linksys Wireless N
| have tried on my Xtreme N and my Linksys on both 2.4ghz and 5.0ghz and the phone just has really low Wi-Fi signal either 0-2 bars of signal and it disconnects and reconnects at random...
The only way for me to get a good signal it basically using my phone 10cm from the router...
I tried the phone at a friend's house, in which case he has a Belkin Wireless N router. Also I tried it on University of Toronto St. George campus' WiFi... Both scenarios results in the same, low WiFi connection signal it seems to fluctuate randomly, Low down/uplink speeds and disconnection and reconnects at random...)
From the phone's service menu for WiFi, it show the phone is only connected to 802.11b (It will NEVER connect to g or n no matter what router I tried to connect to)
Non of these WiFi issues happen to my Samsung Captivate... When I use my Captivate, even when I am in the basement (my router is in the 2nd floor), my Captivate is getting around 50-75% WiFi signal strength on 802.11n
It seems like I did not have time today to exchange my phone due to some University essay due... Will probably exchange it on the weekend.
Will definitely report back on my exchanged model on XDA...
mms6 said:
You are getting 1MB/sec down ??!?
Damn how do you do it??
Click to expand...
Click to collapse
Its just damn good lol
Coming from Rogers Galaxy S II LTE, the LTE connection is weaker on the GSIII. Even when comparing it to the iPad3 at the same location at the same time, iPad connects fine on LTE and the GSIII at times is on 4G.
I did my exchange yesterday..
My WiFi disconnection seemed to have stopped. But the weak signal issue is still present..
I could not pick up public WiFi spots in my University... This is a ludicrous issue... Even in my house, I could barely pick up my own WiFi (if I am literally in the same room or a room next to the router).. My GS3 cannot even pickup any of my neighbors' WiFi. On my iPhone, Docomo Sharp SH-06D and my Samsung Captivate, I could pick up WiFi from neighbors across the street......
Well at least my new unit do not randomly disconnect and reconnect the WiFi now... But the weak signal link is still a MAJOR issue...
Hopefully Samsung will acknowledge the WiFi issue soon....
I have the exact same wifi issues as you. I've called Samsung and their support tech concurred with me that my phone is defective. I verified it with AT&T also when I took the phone to an AT&T corporate store and sat down with a salesperson there with an SGS 3. Connecting to the in store wifi the salesperson had full bars. I had barely one, and it kept reconnecting. I have to wait another couple of weeks before I can do a warranty exchange with At&t because I didn't buy my phone from a corporate store, I got it off of craigs list, and AT&T warranty services won't step in and help until the phone has been on sale for 31 days. So I'm having to wait until then. Meanwhile My data plan started on the 16th of July and I got a warning that I've used 65% of my 4g data up already. I'm sure I'm going to go over and they issued me a 10 dollar credit to take care of that.
It's inconvenient yeah, but at least I'll be taken care of.
AT&T actually gave you credits for data even your phone was from Craigslist?!!
If it was Rogers, they wouldn't even cared.. lmao...
Samsung should make the WiFi issue public... This is NOT AN ISOLATED ISSUE.... It is much more widespread, not just on the ATT/Rogers/Bell/Telus Galaxy S3 i747(m) variants...
The WiFi problem persists on the International i9300 version as well....
....
mms6 said:
AT&T actually gave you credits for data even your phone was from Craigslist?!!
If it was Rogers, they wouldn't even cared.. lmao...
....
Click to expand...
Click to collapse
More than that, they would probably laugh in your face for even asking.

[Q] Poor 5ghz signal strength

Anyone here uses 5ghz band on their home wifi network? I currently use it but the signal is so bad. Say i'm 6-7 feet away from the router, i run wifi analyzer on my GN2 to check 5ghz signal strength, and it sits at -70 to -80 db. Now if I go to my room signal drops tremendously and then it disconnects from wifi.
I initially thought maybe my router, which is a netgear WDNR4000, has issues. But after comparing the signal strength my laptop gets, i determined my router is perfectly fine. I ran inSSIDer to check signal strength on wifi.
Anyway, if you happen to be using 5ghz band, can you let me know how good/bad your signal is? If it's bad, what did you do to improve it?
I have 5ghz and 2.5ghz support on my wireless router. on my pc at home i always get 100% signal on the 2.5ghz, whereas I get around 75%-80% on 5ghz channel.
i believe that the 5ghz signal degrades more rapidly with distance, it's nothing really to do with the phone.
So based from what you are saying, this is normal for 5ghz signal? I guess my laptop uses more power or has better wifi card which is why it has stronger 5ghz signal.
iwin2000 said:
i believe that the 5ghz signal degrades more rapidly with distance, it's nothing really to do with the phone.
Click to expand...
Click to collapse
I'm inclined to agree with this all my devices with 5ghz see this drop off quicker than 2.5ghz
Regurgitated From My Giant Note II
It's a known fact the 5ghz does have better speeds but lacks distance and penetration compared to 2.5ghz.
peekeesh said:
So based from what you are saying, this is normal for 5ghz signal? I guess my laptop uses more power or has better wifi card which is why it has stronger 5ghz signal.
Click to expand...
Click to collapse
Your laptop has a larger antenna in it.
Sent from my Samsung Galaxy Note II.

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