Develop Bugs

[Q] Unable to see SSID of my 801.11n network

Hi all
I have just received an HTC Desire HD and when I try to connect to my home wifi network (which was using 801.11n) and the SSID wasn't shown in the list of available networks. I tried adding the network manually but it then just said that the network was "out of range, remembered". After that, I changed the settings on my wireless router to 801.11g and, lo-and-behold, it appeared on the phone.
I then updated the OS to Android 2.3.3 but, when I switched the router back to 801.11n it again couldn't find the wifi network. I don't want to be stuck with 801.11g (too much interference in my block of flats) and the phone is supposed to support 801.11n. I was wondering if there were any known issues with it (unsupported channels etc). I tried searching the forums for the last 10 mins with no luck.
I'm just using the standard ROM that came with the phone (not had a chance to play yet . Software version is 2.36.405.8
Thanks in advance
Vassago

Update
Ok - so googling around, I realised that I may have a bit of a fundamental misunderstanding of wifi.
On my router settings, I am given the option of choosing between 2.4GHz and 5GHz. I thought this was the difference between 801.11g and 801.11n... but apparently, 801.11n can also operate on the 2.4GHz band.
The interference I suffer from my neighbours is when I'm using the 2.4GHz band so I would prefer to use the 5GHz one. Are there any limitations on the device restricting the frequency bands it can use?
Thanks

Unfortunately, you can only use 2.4GHz N with the DHD.

Ouch
I wonder if I can cancel my contract still...
Oh well - thanks anyway.

Try to use another channel between 1-13 and stick to 2.4ghz band

[Q] portable wifi hotspot disables 3G ?

had the phone over a year now, never had an issue before.
As soon as you turn on the portable wifi hotspot, i loose the 3g/h symbol from the top of the screen and from that no data conectivity?
and as sopon as you turn the wifi hotspot off, it regains an internet conection
Any ideas, ive not installed any apps recently, as far as i can remember?

Do you get an internet connection when another device connects to your phone's wifi hotspot.
If you are able to connect, then it must be working, as it's the 3G signal that the phone uses to connect the wifi to the internet. It might remove the icon, but if you can connect then it's fine.

nope, can conect my ipad to the DHDs hotspot but no internet.
the same for when i turn the hotspot on, cant brouse anything on the phone as no data conection

still not sorted this, anyone else got a aide or something to sort this?

First post (longtime lurker)
I've got the same problem here although this has only started happening in the last couple of days. The phone's data connection is fine until you enable the wifi hotspot at which point the connection is dropped to the phone, connecting any devices to the phone is fine, they get an IP address and can ping the phone directly, but beyond the phone there's nothing.
Rebooting the phone does not help.
The only app I've installed recently is Google Shopper.
Out of curiosity Fil what ROM are you using? I'm on RCMix3d Runny 3.0 which is based on Android 2.3.5 and Sense 3.5. I'm looking at switching to an ICS build pretty soon.
It also looks like we're on the same network although I think that's just coincidence.

yep sounds exactly the same issue,
as for rom, still on t-mobiles original 2.50.110.5 Adroid 2.3.3
was thinking of flashing something custom to see if it solved the problem

I've just flashed IceColdSandwich today at work (it's been a slow day!) and you'll be pleased to know that wireless tethering is working again. I'm on the train home as I type this. It's possibly something in the 2.3 image? I can't really say since we both had different ROMs (mine was a Sensation port). It could just be a bad bit of code in the gingerbread OS that produces this bug on rare occasions.
It may have something to do with the fact that T-Mobile and Orange allow you to roam on eachother's networks. Do you have roaming enabled?
To be honest I'm just stabbing wildly at possible causes here and a flash fixed it anyway. I went ICS but I don't think you'd have to go that extreme but flashing a new ROM overwrites whatever it is that caused this in the first place.
I'm just hoping it's fixed in ICS and won't happen again!

cheers, enabled data roaming, and it now works!
Since the issue, my batterys turned to crap! guessing thats the cause constantly jumping networks, and also data speeds have been very poor lately, was ok when just t-mobile, but orange is poor!
Off to the t-mobile foeums to see if its just me, or others!

[Q] Speed Problems with Wifi Tether

So I went ahead and used the Root with Restore by Binary to get superuser as soon as I got the phone home. Upon installing wifi tether I've found a little bit of an issue and I can't quite figure it out. When I set it up as an ad-hoc network I get my fast 4G speeds (4-8 megabits) but when I try to make it a wifi hotspot so the Playstation can see it, the speeds start crawling at .4 megabit. I figure it has to be something with the radios or something but I'm not quite sure because I don't have a lot of knowledge on that part of the phones. I guess I was just wondering if anyone else had any issues with this and if you solved it, I could use a helping hand. I have used the Auto, generic, generic JB/ICS wan0 and wan1 profiles. Thanks in advance for any input.

my setting's
my setting's are device profile generic ics/jb wlan0 with mms clamping check and routing fix check..had not problem on speed while playing online

yeah i switched it back and it still slows dramatically. which version are you using?

note 4 wifi issue

ok so i searched everywhere for this and couldn't find a solution. i have a note 4 and it will connect to my home wifi just fine. i can search the internet on it, but facebook doesn't load and neither do certain games and the app market loads very very slowly. when i had my S4, it would do everything just fine. i was at my friends house and connected to his wifi and everything loaded lightning fast. so i know it's a problem with my wifi, i just don't know what.
my modem is netgear and my router is belkin AC 1200
any ideas on what to check so i can fix it? i suck up a lot of data lol

Do a speed test on your wifi with another device to determine if it is your phone or your wifi. How does your phone perform on 4g? Does it do the same thing?

the wifi is fine. i can browse the internet, watch netflix, etc. When i'm on my data, everything loads like it normally would.

bump for some help

-Torres- said:
bump for some help
Click to expand...
Click to collapse
Try hard resetting you router and before customizing it(changing SSID, encryption, etc...), test it with your phone to see if its any better.

it didn't seem to help. it's dual band and i tried on both. it wouldn't even load the google play until i switched bands.

any other ideas of a possible fix?

-Torres- said:
any other ideas of a possible fix?
Click to expand...
Click to collapse
Yes.
I just got my VZW Note 4 yesterday and noticed almost the exact same problem. There is a little bit of info out there talking about things like power saving mode and stuff, but I noticed that my speedtest.net throughput was excellent. My next thoughts were DNS resolution or an IPv6 problem. Turns out my wireless router had a default setting with IPv6 routing enabled, but my ISP does not serve IPv6. You may notice the same kind of initial lag on Ubuntu installs (especially with certain VPS providers) where every single command you issue seems to take ages to start, but then completes quickly. I know how to deal with Ubuntu to force a preference for IPv4, but a locked down Samsung phone is a different matter entirely. Thankfully, I was able to just turn it off in the router.
For my specific router (Belkin AC1200 DB), the user interface has an IPv6 settings page, but the options they present to end users isn't intuitive. I changed my 'connection type' on this page to "Local Pass-Through Only", and my problem immediately went away. Have a look and see if you find anything similar.
Thanks, and good luck!
Aggraxis

Aggraxis said:
Yes.
I just got my VZW Note 4 yesterday and noticed almost the exact same problem. There is a little bit of info out there talking about things like power saving mode and stuff, but I noticed that my speedtest.net throughput was excellent. My next thoughts were DNS resolution or an IPv6 problem. Turns out my wireless router had a default setting with IPv6 routing enabled, but my ISP does not serve IPv6. You may notice the same kind of initial lag on Ubuntu installs (especially with certain VPS providers) where every single command you issue seems to take ages to start, but then completes quickly. I know how to deal with Ubuntu to force a preference for IPv4, but a locked down Samsung phone is a different matter entirely. Thankfully, I was able to just turn it off in the router.
For my specific router (Belkin AC1200 DB), the user interface has an IPv6 settings page, but the options they present to end users isn't intuitive. I changed my 'connection type' on this page to "Local Pass-Through Only", and my problem immediately went away. Have a look and see if you find anything similar.
Thanks, and good luck!
Aggraxis
Click to expand...
Click to collapse
DUDE!! this is exactly what i was looking for. i think this fixed my issue. surfed facebook briefly and it loaded everything instantly. i'll check more as the day goes on. thanks so much man

Fixed My Issue too!
Hey Guys
Newbie here! I just wanted to say that this fixed my problem as well. I don't usually post as you can tell by my info but this was worth coming out of the dark to reply to.
Now to clarify, I too have a Belkin router AC1200 so it may be specific to those. Anyway thanks for the help and enjoy the fish!

someone sticky this! i have the same wifi issue , i am at work right now but i will try it when i get home! , i hope this works!

I am having this same issue bUT Comcast here uses ipv6 as well,I have a Belkin n1 router what do I do?
---------- Post added at 07:39 PM ---------- Previous post was at 06:50 PM ----------
never mind i disable ipv6 in my comcast modem and it seen to do the trick, any idea why this is happening?

I've been having the exact same issue on my Note 4. for the past week or so. Our router/modem is a DPC3941T from Comcast, and I can't seem to find how to turn off IPv6. This setting was under Connections > Local IP Network. If anyone could help instruct me further, you would be a great help. I'm pushing my data cap for the month as it is because of this >.<

I'm having the same problem too. The funny thing is that I went to the Verizon store to see if they could trouble shoot it and the phone did not work on their wifi network either! I realize now how to access my IPv6 settings in my router and that does seem to fix the issue. Unfortunately I cant imagine very many businesses with wifi networks will allow me to reconfigure their router everytime I want to use wifi.....

I started having this issue when I upgraded to lollipop. My Netgear C6300 AC1750 doesn't seem to have an option to disable ipv6 though. Any suggestions?

[Q] Suddenly can't see my 2.4GHz wifi.

Hey all
I have a T-800 with IronRom on it. Everything was working fine for almost 2 months now. Starting yesterday, my tab is unable to find my 2.4GHz WiFi, but is still able to find/connect to my 5GHz WiFi or other 2.4GHz networks (public hotspots).
Other devices see the 2.4GHz network fine, and can connect to it. I've just rebooter the router and payed closed attention to what happened. Once the router is online, i can briefly see the 2.4GHz network, i tried to connect to it and my tablet asks for the wpa2 key. When i entered it (it's pretty long) i clicked connect, but the network was already listed "out of reach" by then.
Some more info:
I have rebooted all related devices
Tablet CAN connect to 5GHz network
Tablet CAN'T connect to 2.4GHz network (out of reach)
Other devices (laptop, phones) CAN connect to the 2.4GHz network
Tablet CAN connect to other 2.4GHz network
I have tried a Wifi Analyzer app, that also can't see the 2.4GHz network.
What could cause this or how could i diagnose/fix this issue? Any help greatly appreciated!
Thanks a bunch in advance!

Perhaps some program you've installed recently has made changes to the system or settings that's prohibiting connection?
You seemed to have established there is nothing wrong with your network, and even the device can use both bands...
I would backup, reset the device and see if its still an issue.

Itchiee said:
Perhaps some program you've installed recently has made changes to the system or settings that's prohibiting connection?
You seemed to have established there is nothing wrong with your network, and even the device can use both bands...
I would backup, reset the device and see if its still an issue.
Click to expand...
Click to collapse
Thanks for your reply! I have performed a reset and the problem persists. I have contacted Samsung support and they say it's a hardware issue and i should send it in.
The repairs are outsourced to Dynafix (can't post URL because I'm a new user). Any idea on how they handle rooted tablets with a custom OS? Should i tell them upfront?

You should get it as far back to stock as you can... ie - odin a stock rom.
If its indeed a hardware issue then it shouldn't matter but don't give them that reason.

I managed to fix the problem with the suggestion of a friend. My 2.4GHz connection's channel setting on the router was set to automatic. I assigned it a fixed channel and it immediately popped back into my available networks. Weird problem, but I'm glad i didn't send it in for repairs because they would've charged me for it.

Had the same problem and it was rom related. I changed the rom and coud enable auto channel again in my router...
Sent from my SM-T700 using xda premium