Develop Bugs

Galaxy Note 2 Wifi issue

This is pretty strange so I thought I'd check here with people.
I got my new Sprint Note 2 today. When I was at home it connected to my wifi network and worked fine. When I got to work I connected it to our wifi network and the internet won't work. If I turn off wifi internet comes back.
Here's the kicker, I have my old iPhone right next to it connected to the work wifi network and it is connected fine to the internet. This is definitely going through wifi as I no longer have a data plan on that phone.
I checked with our IT admin who said that there is no need to "accept" a device on our wifi network. He also rebooted the network for good measure. After both phones lost the network (from the reboot) and reconnected the same thing happened. No internet from my Note but internet works fine on the iPhone. Restarting my Note doesn't fix the problem.
Any ideas? Thanks.

I have the same problem. Need help too.
Sent from my GT-N7100 using xda app-developers app

ks-man said:
This is pretty strange so I thought I'd check here with people.
I got my new Sprint Note 2 today. When I was at home it connected to my wifi network and worked fine. When I got to work I connected it to our wifi network and the internet won't work. If I turn off wifi internet comes back.
Here's the kicker, I have my old iPhone right next to it connected to the work wifi network and it is connected fine to the internet. This is definitely going through wifi as I no longer have a data plan on that phone.
I checked with our IT admin who said that there is no need to "accept" a device on our wifi network. He also rebooted the network for good measure. After both phones lost the network (from the reboot) and reconnected the same thing happened. No internet from my Note but internet works fine on the iPhone. Restarting my Note doesn't fix the problem.
Any ideas? Thanks.
Click to expand...
Click to collapse
Is the wi-fi sleep mode on?

Very odd. I've had no such problem at home,work or university
Sent from my GT-N7100 using xda premium

My network admin created a second wifi network to connect to (I guess our router supported it) and when I connected to the new one I got internet.
If it helps others try and solve the issue he tried pinging the IP address that my phone was using and said that he could only send information but not get anything back.

ks-man said:
This is pretty strange so I thought I'd check here with people.
I got my new Sprint Note 2 today. When I was at home it connected to my wifi network and worked fine. When I got to work I connected it to our wifi network and the internet won't work. If I turn off wifi internet comes back.
Here's the kicker, I have my old iPhone right next to it connected to the work wifi network and it is connected fine to the internet. This is definitely going through wifi as I no longer have a data plan on that phone.
I checked with our IT admin who said that there is no need to "accept" a device on our wifi network. He also rebooted the network for good measure. After both phones lost the network (from the reboot) and reconnected the same thing happened. No internet from my Note but internet works fine on the iPhone. Restarting my Note doesn't fix the problem.
Any ideas? Thanks.
Click to expand...
Click to collapse
Try changing your wifi channel config in the router.

Hi, I've got the International version N7100 and experiencing weird wifi problem. I have tried to reset my wifi router and use static IP but it doesn't solve the problem. Btw, the problem is whenever I connect my Note 2 to wifi it would lose connection after a while then messes my router and connection of my PC to router as well. Never had this issue until I brought the Note 2 home a week ago. I had to restart my router and turn off my wifi on Note 2 for everything else to work. My iPad, iPhone and PC are all doing fine when Note 2's wifi is off.

I used to have terrible problems with my Virgin Superhub which all went away when I changed the security settings to WEP hexidecimal from WPA2-PSK (AES). Laptops and phones would have intermittent connections all the time which a reboot or channel change would sort out but only temporarily. Give it a whirl.
Sent from my GT-N7100 using xda app-developers app

I've been experiencing the same problem. It's especially annoying when I try to download big size apps on Google Play ( > 1 gb) because it will stop any moment and i will have to re-download it over and over again. It never happens when I connect to school wifi but it just happens when I connect to my wifi at home. Weird. Nothing is wrong with my wifi at all because my other computer is always connected 24/7 without any problem.

I have a similar problem on Omega Ron v5.0 with latest Andrei kernel. The phone gets stuck sometimes in getting IP address part or have disconnects. It's annoying.
Regards
GT-N7100 cihazımdan Tapatalk 2 ile gönderildi

quick reset of router and modem does wonders!

boodies said:
quick reset of router and modem does wonders!
Click to expand...
Click to collapse
Afraid not.
I did that after other efforts failed but still have to go through same issue every now and then. This is not a permanent problem but something that occurs at least once a day for me.

Also having Wifi issues with GN2 from Sprint
I got the GN2 on it's release date (this past Thursday) through Sprint. Got it home got set up, connected...everything worked beautifully.
After a couple of hours, downloading apps etc. I noticed it had stalled. Turned off WiFI and used the network to finish. Turned back on WiFi and Voila, action again, but a few hours later it stalled.
I first made sure all of my settings were in agreement. No sleep mode or anything like that was enabled. No power saver either.
Couple hours goes by, WiFi connectivity stalls (even though it shows a full signal) I contacted TWC and made sure it wasn't the modem/router. I changed the wifi channel, tinked with the bandwidth... everything worked...an hour later it stalled. Called Sprint they said I had a dud, took it back, exchanged it, got the new one... SAME ISSUES. YEsterday I connected to my Church network HOPING it was an issue at home, but not so. After an hour on the network it stalled.
Contacted Samsung today and they have had no complaints according to them so i said I'm happy to be the first... If anyone finds a fix please let me know.
PD

PastorDroid said:
Contacted Samsung today and they have had no complaints according to them so i said I'm happy to be the first... If anyone finds a fix please let me know.
PD
Click to expand...
Click to collapse
Do you have any solution yet? I have the same issues with 2 different networks. I already contacted Samsung, but they only say I should do a reset of my device and read the setup instuctions for wifi. I'm still in contact with Samsung and hardly try to get a solution.
Stay tuned, I'll post any news I can get.

jetsetwilly said:
I used to have terrible problems with my Virgin Superhub which all went away when I changed the security settings to WEP hexidecimal from WPA2-PSK (AES). Laptops and phones would have intermittent connections all the time which a reboot or channel change would sort out but only temporarily. Give it a whirl.
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
I'd prefer it to work with the stronger encryption of WPA2 rather than WEP.

OP: it will be great if you could add a poll to the thread as that way we can see whats the percentage of users are experiencing this issue,
Thanks
Sent from my GT-I9300 using xda premium

ks-man said:
This is pretty strange so I thought I'd check here with people.
I got my new Sprint Note 2 today. When I was at home it connected to my wifi network and worked fine. When I got to work I connected it to our wifi network and the internet won't work. If I turn off wifi internet comes back.
Here's the kicker, I have my old iPhone right next to it connected to the work wifi network and it is connected fine to the internet. This is definitely going through wifi as I no longer have a data plan on that phone.
I checked with our IT admin who said that there is no need to "accept" a device on our wifi network. He also rebooted the network for good measure. After both phones lost the network (from the reboot) and reconnected the same thing happened. No internet from my Note but internet works fine on the iPhone. Restarting my Note doesn't fix the problem.
Any ideas? Thanks.
Click to expand...
Click to collapse
I had this issue with my S3, but never with the Note 2. What i did in that instance was reinstall the OS and that seemed to have fixed the issue. Hope this helps!
Sent from my iPad using Tapatalk HD

Same issue here. Connect wifi and I'm able to hold connection for as little as minutes at times. Turn back on 4G and I'm fine. If I re enable wifi straight after it works intermittently. This is true of both my home and office wifi. So I'm lead to believe it's the phone.

Hi,
Almost the same thing here. everytime I go out of my home and comeback the wifi network seems to work but no internet access. I have to stop and restart wifi then it works.
very strange issue. ok I have a work around but I'm going to open a ticket to Samsung.

Same issue - connects for about 30 seconds
I've tried on different routers. Other devices (iphone, ipad, S3, etc.) all work fine. Sees the wifi network. connects, then disconnects and TURNS OFF WIFI. I can't figure out how to go to service mode to see if this is a timer issue. I've tried on both G and N networks. using a verizon fios, actionteck router (and netgear). Also, will not remember the password credentials. tried router reboot and fidling, etc. Driving me nuts. any suggestions ???

wifi network detection issues

I recently bought new note 10.1 2014 edition wifi only version. Out of the box it had troubles in detecting my home wifi network. I managed to fix by enabling and disabling wps connection settings from my ZYXEL wifi router. But the problem appeared again in a month with just one reset of the router. My galaxy S2 and S3 have no trouble finding my network so I don't understand why the tablet can't. Both the phones actually more networks than the tablet actually so it's not limited just for my own router. I really hate Samsung for this. I believe the issue is not about hardwarehere.
S2 is running on neatrom latest version. S3 is running on original firmware 4.1 from Samsung and is not rooted yet.

I have been running into similar wifi problems without a real solution. I've noticed it had helped a little too connect to a 2.4ghz network versus 5ghz. But that cuts out the new wireless ac band that this tablet wad suppose to work with.

superdookie67 said:
I have been running into similar wifi problems without a real solution. I've noticed it had helped a little too connect to a 2.4ghz network versus 5ghz. But that cuts out the new wireless ac band that this tablet wad suppose to work with.
Click to expand...
Click to collapse
After your suggestion I digged into the settings of the router. I could not find the option you mentioned but managed to get it working by changing to 802.11b+g+n to 802.11b+g. I am sure this was not a problem before but helped for now.

Anyone else with similar troubles..I wonder if only mine is buggy piece...

i just got the note 10.1 2014 edition wifi only version and i am having problems with the wifi i have a rooted phone which i use the hotspot and my wives phone is connected to the hotspot and my laptop i have no issues with it but just as soon as i connect my table the 4g signal cuts in and out all the time any ideas on what i problem could be

This is a problem with the Note 3 too... Samsung seem to screwed the wifi drivers badly. I found going to wifi, hitting settings again brought up an advanced menu and unticking "scanning always available" and "auto network switch" fixes it a bit...

Thanks for the information I will give it a try

Hi. Recently set up with a new wifi hub and phone, laptop and tablet (Note 10.1) all connected fine. Even more recently the signal gave up in certain parts of the house so a lot of settings were changed, including network name. Phone and laptop found them fine and have been working ok but tablet can't find the network at all. No way of downloading apps onto tablet and diagnosing the problem but save changing the settings again and risking the signal going back to rubbish in the top of the house, is there anything I can do to figure out the problem?

Wifi Calling

im having an issue with Wifi calling after a while i get an error saying ER081 unable to connect.
i reached out tmo today and they claim its an issue with samsung.
Anyone else experiencing this?

lileddy305 said:
im having an issue with Wifi calling after a while i get an error saying ER081 unable to connect.
i reached out tmo today and they claim its an issue with samsung.
Anyone else experiencing this?
Click to expand...
Click to collapse
Nope. I rely heavy on WiFi calling as the tmo signal is not strong enough at my house.
I believe the error is when the phone doesn't think the WiFi signal is strong enough which can happen even with 5 bars. Get the free VoIP router from T-Mobile and you won't have the problem anymore at home ;o)

This is generally related to your WiFi network, not the phone. It's usually from the AP changing channels, device switching bands, encryption rekey, or some other normally imperceptible change on the network side. The quickest solution is to turn WiFi off and then back on on your phone.

ER081 on G6 at work
I can't connect to the wi-fi calling here at work at all. I have TERRIBLE service with T-mobile here and can't even receive any messages or calls on my phone with the wi-fi calling not working. My G4 worked great....this G6, not at all. SO frustrating.

lileddy305 said:
im having an issue with Wifi calling after a while i get an error saying ER081 unable to connect.
i reached out tmo today and they claim its an issue with samsung.
Anyone else experiencing this?
Click to expand...
Click to collapse
It's not Samsung, it's whatever software T-Mobile is using. I have no cell reception whatsoever where I live and no landline either and have been using wifi just fine for my calls. And yesterday out of nowhere, I started getting instant disconnects on calls the moment they were dialed while the internet worked fine.
And today after a patch, I am getting the er081 error. Did the same thing at a local wifi network as well so the next time I am in town, I'll check the T-Mobile store and then either have them replace my phone or get a refund even though I would rather not have to since I have the 128gb version and have been pretty much using it for everything I used to do on my laptop..

er081 error galaxy s6 edge
I received the Jan 2017 patch and my wifi calling won't connect. I also had to have my frontier router replaced the next day. Any suggestions? Is there a setting in the router dashboard I should know abou

on wifi router add ports forward
4500 udp
5060-5061 tcp
reboot router/phone
should be fixed

raven2099 said:
on wifi router add ports forward
4500 udp
5060-5061 tcp
reboot router/phone
should be fixed
Click to expand...
Click to collapse
Thanks to raven2099
your hint solved my problem on my Oukitel K5000. I had the same errormessage with error 081

obiwan2 said:
Thanks to raven2099
your hint solved my problem on my Oukitel K5000. I had the same errormessage with error 081
Click to expand...
Click to collapse
raven2099 said:
on wifi router add ports forward
4500 udp
5060-5061 tcp
reboot router/phone
should be fixed
Click to expand...
Click to collapse
I know this thread is old, but this fixed my WiFi calling issue. The problem is I need more than one phone to be able to use WiFi calling and my router only allows port forwarding to individual internal IP addresses. Therefore, once I assign the port numbers you have given to one phone's IP, I can't assign them to another phone's IP because it will not allow me to create a conflicting service. Any idea how to tackle this?
My router is Netgear Orbi mesh router RBR50 and also have one mesh satellite RBS50
Phones are all OnePlus 7T Pro 5G
Internet Service Provider is Charter Spectrum
Phone Service Provider is T-Mobile

WiFi slow after Marshmallow update

Is anyone else having slow WiFi after the update? I did a speed test with my wife's S4 and had over 20 Mbits. But when I do the speed test on my S6 with M I barely get 1 Mbits. Is there a quick fix or is this an issue that we have to wait for an update.

WiFi still works perfectly fine for me. Have you tried resetting your connection to the WiFi?

Yes. Reset the settings on the phone and rebooted the router. Still acting slower than the phone running lollipop.

My wifi became very slow after MM - no resolution yet

I'm also having this issue. My router also has a 5g band however that works fine. But the normal wifi is very slow.
Sent from my SM-G920P using Tapatalk

Well I removed my network from my phone and reset the router. Set back up my WiFi and now it seems to be better now. Will keep checking.

I had a network extender (slower than my wifi connection point), after MM installation, MM always connected to the slower extender. I deleted the extender definition, reset my connection point setting. Wifi performance improved close to what it was before MM.

This happened when I updated my wife's phone, I did a factory reset and started like new and fixed the issue... I didn't have this issue when I updated mine tho.

I still having issues with slow WiFi. Almost as slow as dial up sometimes.

Trying turning on bluetooth, it improves wifi speeds for some reason.

Ajjdal said:
I had a network extender (slower than my wifi connection point), after MM installation, MM always connected to the slower extender. I deleted the extender definition, reset my connection point setting. Wifi performance improved close to what it was before MM.
Click to expand...
Click to collapse
I finally gave in to doing a factory reset, that appears to have solved the slow wifi problem.
Sent from my SM-G920P using XDA-Developers mobile app

After performing I found out that the Retailmenot app was having an adverse on my wifi performance. I turned of the notifications for it and the problem went away. My son received the Marshmellow update and had bad wifi performance. Also his mobile hotspot wouldn't work. He uninstalled Retailmenot, wifi problem went away and hotspot began working.
Sent from my SM-G920P using XDA-Developers mobile app

Today I found out that if I have the Bluetooth on my WiFi crawls very slowly. If I turn off my Bluetooth my WiFi is full speed. So now I know it is the Bluetooth affecting WiFi. Any suggestion on how to fix this. I have a GearS watch and need to keep my Bluetooth on all the time.

Nexus 5X can't find any wifi network

So I bought a Nexus 5X 2 days ago. When I first started the phone it was running Android 6.0.0 and it didn't have issues. But a update for 6.0.1 showed up and I downloaded it. And then the issues came. It cannot find any wifi network... The problem isn't from my network, because every other device finds my home network and all the neighbors network, but the 5X doesn't find any... I tried factory reset, network reset, cache reset, nothing helped. I even tried Android N beta and for a moment it fixed the issue, but this morning the wifi problem occurred again. I sign out from the N beta and through Mobile network it managed to download the last stable version(that's what google is calling it) - 6.0.1 and the problem was still there.. after some restarts of the phone and some factory resets, i thought the problem was gone, because it managed to find every wifi network in the area, but after i used the phone for 25-30 minutes, the wifi problem occurred again and ever since... So, is this a common issue with the phone, or the android 6.0.1, or is my phone a defected one? Should I go to the store and ask for a replacement? Or will the next phone do the same thing ?

stormklr said:
So I bought a Nexus 5X 2 days ago. When I first started the phone it was running Android 6.0.0 and it didn't have issues. But a update for 6.0.1 showed up and I downloaded it. And then the issues came. It cannot find any wifi network... The problem isn't from my network, because every other device finds my home network and all the neighbors network, but the 5X doesn't find any... I tried factory reset, network reset, cache reset, nothing helped. I even tried Android N beta and for a moment it fixed the issue, but this morning the wifi problem occurred again. I sign out from the N beta and through Mobile network it managed to download the last stable version(that's what google is calling it) - 6.0.1 and the problem was still there.. after some restarts of the phone and some factory resets, i thought the problem was gone, because it managed to find every wifi network in the area, but after i used the phone for 25-30 minutes, the wifi problem occurred again and ever since... So, is this a common issue with the phone, or the android 6.0.1, or is my phone a defected one? Should I go to the store and ask for a replacement? Or will the next phone do the same thing ?
Click to expand...
Click to collapse
Hi something similar happened to my 5X (6.0.1). It was able to find wifi network but I was not able to use internet even-though internet was working for other devices. I have restarted phone but my phone stuck in to WIFI Obtaining IP address...
I have restarted my router and problem resolved. Happened two times. Might be some bug in software.

I'm currently facing this very same issue, no WIFI networks are showing up. I've already flashed latest N preview with same results, funny thing is that this morning was working just fine. But I had to reboot the phone and now it won't detect any WIFI Network at all.
I'm starting to think I have a failed unit, but since I'm outside the "US" I can't send it back for warranty repair. So I'll just keep it and keep restarting until it's fixed again. This is really frustrating, never happened to me with any device I owned before.

kornolio80 said:
I'm currently facing this very same issue, no WIFI networks are showing up. I've already flashed latest N preview with same results, funny thing is that this morning was working just fine. But I had to reboot the phone and now it won't detect any WIFI Network at all.
I'm starting to think I have a failed unit, but since I'm outside the "US" I can't send it back for warranty repair. So I'll just keep it and keep restarting until it's fixed again. This is really frustrating, never happened to me with any device I owned before.
Click to expand...
Click to collapse
Is it every wifi or just your wifi?
If it is just your wifi, try factory resetting your router after recording the settings, or try removing some entries that my be using NVRAM.
I've seen cases where the router runs out of NVRAM to record the DHCP entries and that causes connection issues. It doesn't show up for other devicdes because their entries are already stored in NVRAM. It is just the incremental new device you add that triggers the problem, so you naturally think the problem is with the new device since all your other devices work with the router.

my solution for wifi not found/working
i´ve upgraded from the nexus 5 to 5x.
i had a really weird issue with my wifi.
only found my wifi when i was not in airplanemode. so i read 1000 of articles about the wifi of the n5x.
just the standard blabla. so i did my own research
while my n5 and my n7 + 2 laptops had never issues my new 5x didnt find my wifi. i really thought it was an hw-issue. but it wasnt.
i am using a fritzbox router. newest update, made a reboot, rebooted phone. nothing happened.
then i checked my wifi channels, set it to manually and instantly found my wifi. i really never expected that the channel got such a big influence. may be the latest update brought a bug for the wifi channels or the hw is just not capable of some channels, dunno. but this is what helped me and it was nowhere mentioned in any forum.
tl;dr
try to change your wifi channel of the router.
edit: btw i found the 5ghz while the 2,4ghz wifi didnt work. but i wanted the 2,4ghz wifi to work because of the short range of my 5ghz wifi.
atm i am on channel 8 and i got no problems with the 2,4ghz wifi network

L-ViZ said:
edit: btw i found the 5ghz while the 2,4ghz wifi didnt work. but i wanted the 2,4ghz wifi to work because of the short range of my 5ghz wifi.
atm i am on channel 8 and i got no problems with the 2,4ghz wifi network
Click to expand...
Click to collapse
I don't know about Europe, but usually in the US we only use channels 1,6,11 to prevent overlap.
This is because there is overlap in the channels so you can't really use the in between channels due to too much interference. If you are the only wifi transmission in your area it is fine to use any channel, but if there are others and they are using standard channels for no overlap/interference and you are using in-between channels, your signals are probably going to interfere with each other.
When everyone is using the set channels, then they can negotiate properly and everything works better. With overlapping frequency bands, the negotiation doesn't work well because your signal sometimes looks like noise to the other device.

sfhub said:
Is it every wifi or just your wifi?
If it is just your wifi, try factory resetting your router after recording the settings, or try removing some entries that my be using NVRAM.
I've seen cases where the router runs out of NVRAM to record the DHCP entries and that causes connection issues. It doesn't show up for other devicdes because their entries are already stored in NVRAM. It is just the incremental new device you add that triggers the problem, so you naturally think the problem is with the new device since all your other devices work with the router.
Click to expand...
Click to collapse
Hi, thanks for your help but unfortunately it's every wifi... it just hangs on "Searching for Wi-Fi Network..." and stays there...
I already talked with LG and they asked me to send the unit for repair, but I'm no in the US anymore (I was for a short time of period and that's when I bought this phone). So that would not be an option, right now I'm only using 4G and trying to measure it, lol
Just another question, do you guys think I could use a WIFI external dongle through USB OTG? Could that be possible on the Nexus 5X?
Thanks for your help! :good::good:
---------- Post added at 12:43 PM ---------- Previous post was at 12:41 PM ----------
L-ViZ said:
i´ve upgraded from the nexus 5 to 5x.
i had a really weird issue with my wifi.
only found my wifi when i was not in airplanemode. so i read 1000 of articles about the wifi of the n5x.
just the standard blabla. so i did my own research
while my n5 and my n7 + 2 laptops had never issues my new 5x didnt find my wifi. i really thought it was an hw-issue. but it wasnt.
i am using a fritzbox router. newest update, made a reboot, rebooted phone. nothing happened.
then i checked my wifi channels, set it to manually and instantly found my wifi. i really never expected that the channel got such a big influence. may be the latest update brought a bug for the wifi channels or the hw is just not capable of some channels, dunno. but this is what helped me and it was nowhere mentioned in any forum.
tl;dr
try to change your wifi channel of the router.
edit: btw i found the 5ghz while the 2,4ghz wifi didnt work. but i wanted the 2,4ghz wifi to work because of the short range of my 5ghz wifi.
atm i am on channel 8 and i got no problems with the 2,4ghz wifi network
Click to expand...
Click to collapse
Hi, thanks for the suggestion but the problem I'm facing it's with every wifi network around, not only mine.
I guess unit is defective, but could a simple reboot trigger this kind of behavior? This is strange, never happened on any device I've owned before. :crying: