yashsingh1/xdaforums huggingface dataset:
[Galaxy Note II Q&A, Help & Troubleshooting] muchtall:
Quick update. Got my phone back from Samsung after shipping it off for repair 2 weeks ago. Verdict? Still broken. No hardware appears to have been replaced (MAC address remains the same), and the firmware is still on MC2. Odd thing is, my phone's status now says the device is "modified", even though this was not the status when I sent it off, and the flash counter and related statuses on the recovery screen still show the phone in original condition.

Anyhow, got tired of telling the same story over and over again to Samsung support, so I made a video for them to watch while they put me on hold:

youtube.com/watch?v=bVm_lFt0D4M

I'll probably have to send the phone back in again, unless I can convince them to replace it with a new unit. I'll keep you updated.
[Galaxy Note II Q&A, Help & Troubleshooting] muchtall:
Been meaning to get my status update posted for a couple weeks now, but life gets in the way.

Got my phone back from Samsung. This time around that actually replaced the PBA (motherboard), and as one might expect when you effectively swap out the entire "phone", the WiFi now works correctly. The level 2 tech I had spoken with was convinced that the issue was hardware, and not firmware/software, so he made sure the repair dept addressed it as such.

So there you go, if you have problems where the

transmitted

signal strength of your phone is weak (you can

only

check this from your access point),

insist

that Samsung do a PBA swap. It's not likely that anything else will fix it (unless they find some hidden bug in the hardware implementation that somehow locks transmit power to a minimal setting), and in that case, the fix won't be in MC2 (or its variants).
[Galaxy Note II Q&A, Help & Troubleshooting] jdomadia:
I am agree with you,in my case also after replacing Mother Board my wifi problem sorted out completely,even I keep changing rom no problem,performance of wifi is very good,btw u have now sane chip?
[Galaxy Note II Q&A, Help & Troubleshooting] yahyoh:
Its totally software issue :(

Bugyy wifi driver ;_;
[Galaxy Note II Q&A, Help & Troubleshooting] Atsco:
Find solution for me, Wi-Fi works fine again! With my slow Wi-Fi (after phone wakes up from sleep) problem happened strange thing: after last Omega update I find out, what I was afraid, that this Wi-Fi bug was still in Samsung stock kernel. So I flashed again older kernel and tried forget all thing. But because I had problems with some custom mods I had to flash all ROM again. I don't know why, but this time I checked Wi-Fi settings and accidentally changed Wi-Fi from dynamic to static. And surprise, surprise, problem is gone! I know, that I tried same thing few months ago with Omega v15, but then there wasn't settings ready, I had to do something myself, so I didn't do nothing then. But now all settings was there ready, I only changed Dynamo > Static & saved settings and like I said, now this problem didn't exists anymore!
[Galaxy Note II Q&A, Help & Troubleshooting] muchtall:
How do you figure? I flashed back to a number of other ROMs (and therefore drivers) and never had any success with this. Now I have a new PBA running the exact same driver, and the problem is gone.
[Galaxy Note II Q&A, Help & Troubleshooting] yahyoh:
u can try Perseus kernel which i think use non stock driver ( maybe form GS3 ) or can use the 4.1.1 driver which has no problem whatsoever :p

Samsung ****ed the driver since 4.1.2 and they didn't fix it ._.
[Galaxy Note II Q&A, Help & Troubleshooting] muchtall:
I used the 4.1.1 driver. Like I said, I flashed back to earlier ROMs without success. I also used non-stock drivers.

I don't doubt that, in some cases, 4.1.2 hosed the wifi chipset on the GN2, but I think in a number of cases like mine, the hardware was irreparably damaged (due to perhaps a bad transmit power setting in the firmware/driver). What further confuses the issue for many people is that when you first connect to wifi with a damaged chipset, it looks fine. The problem takes 30 seconds to a minute for the connection rate to fully degrade. The severity of the issue also varies depending on how far you are from the AP. Not only that, the problem seems to be independent of the WiFi band: Some people have problems with 5Ghz, others 2.4, others both. I would expect that if this were a driver issue, the problem with be far more consistent and prevalent.

In addition to this, I think that this entire thread really involves a number of individual people with different issues, one of which is a legitimate hardware issue. Some "solutions" suggested here don't really apply to all situations. There may be people who resolve their issue with a driver/ROM swap, but I doubt they are having the transmit power issue I refer to, since most people wouldn't check their AP for the client RSSI.
[Galaxy Note II Q&A, Help & Troubleshooting] sprkrt:
FYI, i tried a few 4.2.2 Rom's and the old trick "coping wifi folder from an 4.1.1 rom" does not work....
[Galaxy Note II Q&A, Help & Troubleshooting] Martmm003:
Finally!!!!!!!!!!!!!!

Enable IP QOS on the router! Works!!!!!!!!!!

---------- Post added at 10:24 PM ---------- Previous post was at 10:17 PM ----------

Also on the QOS Policy select 802.1p
[Galaxy Note II Q&A, Help & Troubleshooting] yahyoh:
4.2.2 is not TW :eek:
[Galaxy Note II Q&A, Help & Troubleshooting] sprkrt:
i know, just thought i should take a try.
[Galaxy Note II Q&A, Help & Troubleshooting] jetbruceli:
Have you all tried this

Go to your dialer

Dial *#0011#

Menu select WiFi at the button

Then make sure power saving is turned off
[Galaxy Note II Q&A, Help & Troubleshooting] Doctor O:
I was experiencing issues with wifi such as Youtube videos stopping from working half way through watching ("There was a problem with the network") even though I still had full WIFI reception, Internet browsing would randomly fail with the error "Connection problem: Authentication via the proxy server was unsuccessful" but other web based services such as pinging an internet address or Whatsapp would continue to work.

The only way to get round this was to disconnect from Wifi and re-connect - or in some cases with the Internet browser, a re-boot of my Note 2.

I tried lowering security settings on my Virgin router (from WPA2 to WEP) and this appeared to have fixed the problem - but this was short lived.

Tried changing the channel, forcing a specific IP address, leaving security open - again, it looked like it fixed the issue, but it would soon start dropping again.

Finally managed to resolve the issue by disabling the Wifi Proxy settings!

Menu -> Settings -> Wifi -> [long press on connected wifi SSID] -> Modify network config -> tick "Show advanced options" -> Under "Proxy Settings" change this to "None"

Once I made this change, I was able to browse Youtube and the Internet with no disconnections at all! It was quite refreshing to not have to keep disconnecting and reconnecting. The only issue that I seem to find is that I have to make this change each time that I re-connect to my home Wifi (standard Virgin Superhub in the UK) but this is a small price to pay... there may be another way to get this setting to stick, but I cba to look into it right now :)

Hope this is of some help to someone... I was tearing my hair out!
[Galaxy Note II Q&A, Help & Troubleshooting] billgc138:
I've tried a lot of different solutions, they don't work. It's simply a bug imo, and its getting out of control as the solution is not a viable if I were to connect to public wifi.

I've tried the following:

- reflash stock rom

- turning off the power saving mode

- over writing wifi files with 4.1.1 files

this issue only occured after flashing to jedi x17, when i was using x11 it was running perfectly.
[Galaxy Note II Q&A, Help & Troubleshooting] Fendy Kacak:
i also have problem when connecting wifi at the restaurant

maybe at that time have many people also want to use the wifi too :laugh:

in my country, internet connection are not really good but we need to pay expensive for the service

my solutions is restart the phone and asking the owner of the restaurant to reset the wifi router :victory:

if can`t maybe the wifi are the problems
[Galaxy Note II Q&A, Help & Troubleshooting] mightybhwk:
I was having the same issue. nothing seemed to work. Until I opened my note 2 and lifted up slightly on the WIFI connection point on the motherboard. Now I get full WIFI anywhere with the same ROM. Might want to take a look at it.

Here is my post.

http://xdaforums.com/showthread.php?t=2436506
[Galaxy Note II Q&A, Help & Troubleshooting] sumeet909:
Thanks. Could you please confirm that your download speeds are comparable to other devices on same network? I don't have the range problems you mentioned, but have much slower download speeds. Before I open my phone, wanted to confirm that you are able to stream YouTube etc., on WIFI without buffering.
[Galaxy Note II Q&A, Help & Troubleshooting] sumeet909:
After reading a tip on VZW firms, I went into router settings, picked a channel and locked it to default to that channel. Speed has been pretty good since then - actually beating my iPad in many instances. Pic attached. Prior to this nothing worked for me.
[Galaxy Note II Q&A, Help & Troubleshooting] Jodiuh:
Fixed my issue...

...bought a G2... :victory:
[Galaxy Note II Q&A, Help & Troubleshooting] csmiler:
After paying so much for this device, we shouldn't have to tweak our routers and mess with PSM just to get the wifi working.

Such a disappointment :(
[Galaxy Note II Q&A, Help & Troubleshooting] brielle82:
No Wifi/Bluetooth Please Help I Know Someone, Somewhere Has To Know Something!

I am new to XDA as of today because I was googling, yet again as I have over the coarse of the last 5months!) my issues and stumbled upon this thread I am a 'noob' however the people that I have taken my phone to are not..if I receive any replies, in which I pray that I do, I will promptly head over to them with any of your ideas to try. Please help this has been pain staking!

I bought it from someone for $500 back in April. The guy I bought it from must have been some sort of genius or something because every freaking repair place and computer places, in Tulsa, OK, have absolutely no idea what the guy that I bought it from did! I remember it had a custom ROM I think it was Jedix..sorry I am a noob and a girl at that :/

I have spent countless hours reading forum after forum to no avail.

So the guy that I bought it from asked me if I wanted regular 3g/4g speeds and wifi or fast internet speeds everywhere and no wifi. I, assuming that I could easily just turn wifi back on with the flip on the button, told him that I wanted fast internet and no wifi. I get home and try to flip wifi back on and nothing! Also no bluetooth. I was in contact with the guy that I bought it from and he did try to walk me through turning the wifi/bluetooth back on. He said it was simple..He had me wipe the cache, wipe the kernel, something to do with qual comm settings..blah blah I do not remember because it was months ago and so many things have been done to it since then. I shortly lost contact with him. If I am within 2 feet away from my router I can pick up great wifi but 3 feet away or further I am s.o.l. I can pick up a real weak connection in public places like my college or a hospital. I have paid every phone repair place and computer store here in Tulsa to try to fix it. They all do the same thing, just restore it with the exception of the last place that I took it to..they tried to but an older version on it thinking wifi/bluetooth had something to do with version it was on.

Please do not tell me that this is a hardware issue!- I have read countless forums and have read that I am not alone with this issue. It does however not look promising because I have never read of anyone fixing this issue. I have read things about it being the radio etc etc. I firmly believe that this is a software/programming issue however the people that I have seen this happen to never got it fixed..they eventually just gave up and bought new motherboards or new phones entirely. With that being said a motherboard could be a possibility..any ideas on how much a new motherboard cost? Sorry for being sooo long I am just so frustrated. This is such a beautiful phone and I have never gotten to fully take advantage of all of its capabilities because of this.

Thank you Thank you Thank you :)
[Galaxy Note II Q&A, Help & Troubleshooting] dead soul:
Firstly you can get motherboards from eBay but be careful for scammers... also another cheap way of buying a motherboard lets say on ebay search for a phone which is working but with a smashed screen or something the seller may sell it for less as ur intention ultimately is just using the motherboard

With regards to ur issue.. have u tried flashing back the original ROM via Odin or some other stock ROM of another country ? like FULL FACTORY WIPE/RESET ? it does not make any sense. If you have or the repair centers have done that then clearly its most definately not a software problem ! if you claim the wifi is only reachable 3 feet away from your router it means either ur routers wifi is faulty. On the other hand assuming is not software then the original owner of the phone or the service centers may have opened up the phone and possibly didnt connect the bluetooth/wifi antena cable to the motherboard or its loose !! these are possibilities !! or it was loose all along !!!

I would say Backup any important data

Get a original Samsung Stock ROM

backup ur phone (NAND Backup + EFS)

flash ur phone with the Samsung Stock firmware via Odin (FULL WIPE)

and see if that helps

NB: If you dont know what is NAND Backup/ EFS or how important it is please google it or search it on XDA before asking
[Galaxy Note II Q&A, Help & Troubleshooting] muchtall:
It probably is a hardware issue, possibly triggered by some or even most custom ROMs. I had the exact same symptoms as you, and it all started after flashing Cyanogenmod. Nothing suggested here worked... and I mean nothing. I've tried it all, and tried it repeatedly. The issue probably is that your Note2 isn't transmitting a strong enough signal, and that can't be fixed by changing ROMs or tweaking Wi-Fi settings. I personally believe that something about custom ROMs causes the transmitter power on the radio to overload and severely weaken the transmitter or its amplifier. This isn't something you can fix in software or firmware. Some may say "Impossible! Software can't damage hardware!", but to those I ask: Can't software change the core voltage and clock speed of your CPU? Can't overclocking damage hardware? Modern Wi-Fi chipsets are no different in that ability to be damaged by software/firmware bugs or misconfiguration.

Sorry to be long winded, but I'm afraid you're probably looking at hardware replacement. See if your device is still under warranty, and if so, flash it back to stock, remove all evidence of ROM flashing (counters, etc), and try to get Samsung to replace the mainboard. That's the only thing that worked for me, and it's probably your only option, short of footing the bill on a known good mainboard yourself.
[Galaxy Note II Q&A, Help & Troubleshooting] orbitech:
Well from my experience I would have to agree that problems with WiFi started after installing CM 10.2 based ROMs. I am now back to custom 4.1.1 and WiFi works like a charm and very strong signal. If you add to the equation the fact that my mobo was just replaced because of SDS syndrome, it's highly unlikely that it's a hardware issue (when it works like a swiss clock in 4.1.1).

There's something in the code in these ROMs that affects some users WiFi utilization. I have tried so many things from yesterday to fix this, but nothing.
[Galaxy Note II Q&A, Help & Troubleshooting] jackpro:
tried wifi static

tested wifi static google play wifi speed way better thank

https://play.google.com/store/apps/details?id=com.farproc.wifi.statIc&hl=en
[Galaxy Note II Q&A, Help & Troubleshooting] ovidiugr:
I had wi-fi problems with note 2... then I reconfigured my router to AP mode, now everything works fine.
[Galaxy Note II Q&A, Help & Troubleshooting] wclub3:
Galaxy Note 2 GT N7100 WIFI BLUETOOTH.. SERVICE

Hello, I´ve also tried everything software related to no avail. So I finally disassembled the device as shown in videos found on youtube or elsewhere.

Google it!!

Reconnected the wifi chip. Turned the the device on and....wifi and bluetooth worked strongly!!! That fixed it for me!!

To be clear: I just took the screws and the plastic piece that covers the motherboard (Bee careful and patient and use the right tools!!). Then disconnected and reconnected the connector of the wifi chip, which is located right next to the lower volume button, on the board. It´s the only cable showing.

I´ve seen this problem on laptops, because of overheatin issues related to bad mainboard design, but I cannot be sure in this case without further testing.

I´ll see how long this fix lasts and I´ll keep posting.

UPDATE:

Problem came back. I need the brand and model of the wifi/bluetooth chip so I can buy it and replace it. Anyone??
[Galaxy Note II Q&A, Help & Troubleshooting] Jodiuh:
Well, I took back the G2. Not the phone for me. :D

So back to the Note 2 and it's wifi issues!

Interesting fix wclub3!

To be clear, the issue I seem to be having is one of connection rates. I can be in the same spot and over 5 minutes I'll go from 52 Mbps to 6 Mbps. It's completely random.
[Galaxy Note II Q&A, Help & Troubleshooting] yahyoh:
welcome back :D

---------- Post added at 09:48 PM ---------- Previous post was at 09:47 PM ----------

Guys lets report the damn issue here :)

http://developer.samsung.com/forum/board/thread/list.do?boardName=General&searchType=title
[Galaxy Note II Q&A, Help & Troubleshooting] 3vo3d:
So are you still running the Jedi rom or stock?
[Galaxy Note II Q&A, Help & Troubleshooting] Jodiuh:
Yup. Glad to be. The G2 was friggin' hot! The backlight would randomly dim, then brighten, then dim too. That was super annoying.
[Galaxy Note II Q&A, Help & Troubleshooting] wclub3:
Well people you ought to try this.

It seems that the middle casing that is screwed on top of the mainboard is somehow disrupting my wifi/bluetooth signal by displacing the power button in such way that it interferes with some other element on the mainboard. I found this behaviour by attaching the middle casing in such way that it didn´t completely attach at the power button section. Leaving it like that gives me FULL STRENGHT SIGNAL ON WIFI AND BLUETOOTH.

It may have to do with the Spen, since this accesory goes all the way up right next to the power button. I´m not sure.

Anyhow, if you are suffering from wifi/ bluetooth not poweing on, or getting low signals...you may want to try to change the middle casing or to tamper with the power button area.

Mine seems to be working fine now. Good luck
[Galaxy Note II Q&A, Help & Troubleshooting] wclub3:
from bunnybash:

Found the wifi fix

I just figured out what the problem is, the wifi antennae in the case was buggered! I ordered a new back of the phone and replaced that and the wifi is fixed!!! I had a feeling that was the cause of the issue but I couldn't be sure till I replaced it. The wifi antennae is above the power button, with the back off you can see it as the long piece of plastic that is stuck in on the very edge. I had to buy a whole new back - it was only about $11 shipped. But it solved all my wifi problems.
[Galaxy Note II Q&A, Help & Troubleshooting] BDestroyer8418:
Not sure if this is the same problem as other's are having. Had this phone since Nov 2012. Been having nothing but trouble with my Wifi. Tmobile asked me to change router's so I tried a few other's and tried connecting to a few friends. In the end it ended up all being the same the phone will connect to Wifi but after a few mins on the connection if I'm searching the web or streaming anything the phone drops the Wifi and then reconnect. It will do this up to 5 times and then it will be connected but have no web I would have to reset the Router and the problems starts all over again.

Finally had enough and called Tmobile again and told them I need a new phone so they just shipped one out well a refurbished for $20 most likely since it was just the phone only nothing else shipped with it. Booted the phone up and again I dropped the Wifi just like my original phone. I'm most likely going to keep the newer one they sent since my back button does not want to work all the time. So I still not sure if it's my phone, Router or a mix of both.

I ended up returning the 2 other Router's I tired and still using my older Linksys WRT310N. Anyone have any luck with a specific router or is something wrong with this phone. I have no need to upgrade but if I can't fix my Wifi problem I will have to sell it. I get no service at my house unless I'm outside.
[Galaxy Note II Q&A, Help & Troubleshooting] Jodiuh:
It seems pretty clear to me that this is a flaw with the phone.
[Galaxy Note II Q&A, Help & Troubleshooting] efze:
I run a rooted N7100. Had issues with wifi after 4-5 month of usage. Tried many things incl this. Didn’t work. Guess what? It was my battery saver that was messing up the wifi. I had DS Battery Saver. Ever since I disabled it, no further issues faced! So check you installed apps. They might conflict with such things from time to time.

Off topic, had an issue with installing apks. Screen filter app on the phone prevented it.

Lesson learnt? Stop installing buttload of apps for no reason :)

Cheers!
[Galaxy Note II Q&A, Help & Troubleshooting] Cryingmoose:
Just got my N2 and i noticed this issue.

I'm running a dual-band network, and it'll randomly just not see the 5ghz band, even when standing next to the router and 2.4ghz is full bars.

My Atrix & Nexus 7 have no problems with the wifi
[Galaxy Note II Q&A, Help & Troubleshooting] rajil.s:
Has the leaked 4.3 improved things?
[Galaxy Note II Q&A, Help & Troubleshooting] AlanDS:
The leaked version has improved the low speed which I was getting in 4.1.2.... but many people are facing connection drop with this firmware. The connection gets auto disconnected.
[Galaxy Note II Q&A, Help & Troubleshooting] sprkrt:
i tried Probam 4.4.7 based on 4.3, and wifi works perfectly without any tricks needed.
[Galaxy Note II Q&A, Help & Troubleshooting] Jodiuh:
Mom is visiting for awhile and her lappy's only got a G card, so I had to change the router from N only to G.

I have checked the phone three times now over a period of 3 hours and every time it has been connected @ a rate of 54 Mbps.

I'll update later w/ more results.

Also, is there any benefit to N other than the higher connection rate? Would latency be better? It doesn't seem like range has suffered...improved actually.
[Galaxy Note II Q&A, Help & Troubleshooting] malmushiri:
wifi issue on note 3

Hi all

Had the same issue and tryed few things but the only thing that worked for me (and I dont have a scientific explanation for it) is went to the wifi lest and deleted all past saved networks either on the new note 3 or restored from my older samsung device.

It did it for me and have no more issues with wifi anymore. I also have the Auto Network switch ticked.
[Galaxy Note II Q&A, Help & Troubleshooting] cantelumber:
The note 3 has wi fi issues as well, does anyone know a link to that discussion of it exists? Thanks
[Galaxy Note II Q&A, Help & Troubleshooting] Ev0d3vil:
Any fix to this? Help?
[Galaxy Note II Q&A, Help & Troubleshooting] Andrew87K:
I have been having the same sorts of issues as described here, i.e. wifi being sluggish after waking up the phone from sleep. There is obviously some sort of software bug, but

Linksys wrt54g - no issues

I bought TP-LINK TL-WR1043ND - problems as described by many (turning off saving mode in *#0011# helped but used the battery some more obviously), so I returned the router and bought

Netgear N300 Gigabit Router - so far so good

So whilst there is certainly a problem with the device, for me this is very much dependent on a router.