Samsung phones keep forgetting wifi passwords - Android Q&A, Help & Troubleshooting

Hi guys, I had the Galaxy S4, Note 4 and now that my Note 4 was stolen, I am using a budget Galaxy Core Prime while waiting for the S7. All three models have something in common - they forget most wifi passwords. I had to re-enter passwords on all three models on my home wifi (3 different modems and adresses over time so it´s not about the modem or place or router), work wifi networks etc. etc. - just about everywhere. Then I travel and the phone remembers a wifi password in a location I haven´t been to in a year.
This was an issue even after I did factory resets. I have also changed my network provider and SIM so that shouldn´t be the issue. I only use stock firmware that is up to date.
I couldn´t find any information about this anywhere. Can anyone help? Thank you

Related

WIFI issues, new device

Hello wondering if anyone can help.
Bought the device yesterday, galaxy player 5.0
The only way I can connect to the wifi is if I disable WEP and have the router open.
When I use WIFI, either from the cell phone or my home WIFI using WEP, the device is stuck in obtaining IP address, as soon as I remove the WEP and have the router open, it connects.
None of my other devices have this issue, only this one.
Any ideas?
or
Should I return it?
Thanks.
I found that if my router was broadcasting its SSID my 5 would connect, if it was hiding the SSID it would not (just sat there searching for IP). Maybe that's the problem?
Mine has problem too on my belkin54g (open config), connect and disconnection all the time pretty annoying, i really hope there will come a fix out from samsung since it came with 2.3.5 update....
Thanks!!!
Thanks guys got it working.
Changed password on the router and did a reset to it.
Seems that did the trick.
Almost returned the player.
And the worst is that I had already installed a shield for the screen, 15 bucks!!!
Anyway, thanks for the response!!!
Hidden SSID need patch for YP-G70
Just install HiddenSSID Enabler from market, it'll work for YP-G70. You need run it once and get your hidden wifi connected, then can uninstall it. Looks like it is just a patch but really works.
I was under the impression you could use a hidden SSID under stock 2.3.5. Under Wifi Settings, there is the "Add Wi-Fi network" option, and it looks like it can be used for hidden SSIDs.
apapousek said:
I was under the impression you could use a hidden SSID under stock 2.3.5. Under Wifi Settings, there is the "Add Wi-Fi network" option, and it looks like it can be used for hidden SSIDs.
Click to expand...
Click to collapse
No, it won't work coz hidden SSID not supported by GB.
Sent from my YP-G70 using xda premium
Try using WPA instead of WEP. WEP is ancient, and some newer wifi chipsets don't interoperate well with it because it's so old and it's been HIGHLY recommended to ditch it on routers for at least 5 years. WEP was known to be insecure almost a decade ago!
Sent from my GT-P7510 using Tapatalk
Someone correct me if I'm wrong but it seems like I remember reading a few years ago that hidden ssid's were not part of the 802.11 b,g, or n specifications. I thought that while a lot of devices had that function, it wasn't exactly "compliant".
Meticulus said:
Someone correct me if I'm wrong but it seems like I remember reading a few years ago that hidden ssid's were not part of the 802.11 b,g, or n specifications. I thought that while a lot of devices had that function, it wasn't exactly "compliant".
Click to expand...
Click to collapse
Yes, that's true. I haven't seen any android smartphone on GB (don't know what's in ICS) can connect hidden SSID unless apply the hidden SSID Enabler patch. However, iphone / ipod has no problem.
Sent from my YP-G70 using xda premium
I am constantly losing my connection with wifi, i got samsung galaxy player s wifi 3.6
wifi disconnect/reconnect fixed
On my 4.0 US, the wifi would disconnect and reconnect constantly. To fix it, go to ur network (on windows go to start and click network or type in ur IP address) and go to LAN settings. Change the dhcp lease time to 2 weeks or anything bit forever. It resolved my issue completely

Galaxy S3 Network Bug on reconnect [SOLVED]

Hey there fellas,
I tried to find something on the forums regarding this matter, but I found a very annoying bug/habit. I'm currently on InsertCoin 2.3.1 and tried a wide variety of modem firmwares, but when I'm in areas where I have a very bad signal (in the gym's basement, for example), I completely lose connection to my network provider from time to time. Sometimes, when my device is reconnecting, it cannot reestablish a mobile data connection. When this happens, I can't make or receive calls either, even though the signal bar shows a valid connection!
In a nutshell: After losing signal, the device seems to reconnect to the provider network, but not properly. Can't make phone calls, can't send or receive SMS, only indicator for this is the missing mobile data connection icon. Only a restart resolves this problem, but I'm not happy with restarting my phone multiple times a day!
Here are some topics that seem similar to my problem:
http://forum.xda-developers.com/showthread.php?t=1782204&highlight=losing+signal
http://www.samsunggalaxys3forum.com.../1214-losing-connection-cellular-network.html
As I said, I already tried different modem firmwares, always with the same result. Can anybody help me with that matter?
______________________________________________________________
Solution: Check your current CSC and make sure it's set to your specific country!
I have the same issue from when I had stock ICS and now still the same with Jellybean.
Sent from my GT-I9300 using xda premium
Checklist Network,
One enter settings for network APN etc .
Two correct modem for network phone and location .
Three correct CSC for network/area
Four problem on original phone providers rom and modem ???
Five might be worth investigation of RIL .
jje
I have the same issue.. at first I thought it was due to the crappy network provider .. however I tried putting my sim in my old Nokia e5 and got decent signal strength even in areas where the s3 was unable to connect to the network. I faced the same problem even in stock ROM updated to latest version available for my region.
Any help would be much appreciay .
Sent from my GT-I9300 using xda app-developers app
I used to have this problem with my stock ICS rom, exactly the same situation you described. Can't make any call after coming out from a tube.
I9300XXDLJ4 (4.1.1) is all good in reconnecting the signal.
- T-mobile UK
Okay, after a few days of testing and trying to get a bad signal on purpose, it seems that setting up the CSC did the trick for me. After flashing InsertCoin, I had a French CSC. So I switched it to Germany and now the reconnect issues seem to be gone! There is a very handy CSC switching tool for free in the Playstore, but be careful, your ROM must support MultiCSC and switching the CSC wipes your internal memory!

Galaxy note 10.1 wi-fi connection problem

Hello.
So let's get straight to the point. I have a Samsung Galaxy Note 10.1 tablet with 4.1.2 installed. Since the new update, my tablet won't connect to schools network, which had EAP method TTLS and phase 2 authentication PAP. It doesn't need a User certificate, but we have a CA certificate.
Previously it worked flawlessly on 4.0.4 and on 4.1.2 for about a month, but then suddenly a weird error appeared. It says, "the password is incorrect". I tried modifying the network numerous of times, forgetting it and resetting the tablet, but none of it helped. I'm using the Wi-fi hotspot from my telephone to connect to the internet in school. I can assure, that there are no problems with the school network since all of my friends can connect to it (applies for every operating system) and the speed also isn't the problem, it's a 100/100. I look forward to every answer.
Best regards.
Ok, I found out, that I posted this in the wrong section, but I forgot, on how to delete the topic. Sorry, my bad.
ziga1221 said:
Hello.
So let's get straight to the point. I have a Samsung Galaxy Note 10.1 tablet with 4.1.2 installed. Since the new update, my tablet won't connect to schools network, which had EAP method TTLS and phase 2 authentication PAP. It doesn't need a User certificate, but we have a CA certificate.
Previously it worked flawlessly on 4.0.4 and on 4.1.2 for about a month, but then suddenly a weird error appeared. It says, "the password is incorrect". I tried modifying the network numerous of times, forgetting it and resetting the tablet, but none of it helped. I'm using the Wi-fi hotspot from my telephone to connect to the internet in school. I can assure, that there are no problems with the school network since all of my friends can connect to it (applies for every operating system) and the speed also isn't the problem, it's a 100/100. I look forward to every answer.
Best regards.
Ok, I found out, that I posted this in the wrong section, but I forgot, on how to delete the topic. Sorry, my bad.
Click to expand...
Click to collapse
Just to let you know this is the galaxy tab 10.1 section. Might have more luck in the correct one

Purchased Samsung Galaxy SIII GT-I9300 Second-Hand, Wifi Not Working

S3 wifi not working
(repost this to this section, adviced from xda assist)
I just purchased second-handed Samsung Galaxy SIII GT-I9300 (international ver) to replace my old Samsung Galaxy Mini (GT-S5770). I purchased this cuz the price tag on one of local stores is just too tempting me to buy one, plus, giving me free true leather phone case! (though my target was Acer Liquid Z410, but not available on local stores and i dont know how to buy online as well)
The phone conditions, well, do have some minor scratches at the sides but the previous owner was middle-age man, and im not so picky with that detail.
The phone is great, well, except, the WiFi isnt in good condition in normal uses. (means, i can still uses them. details in below)
The S3 properties,
Android 4.3
International ver, GT-I9300
16 GB ver (which i found out some cases with unbootable S3, with 16GB ver only)
unroot
all related to network setting (includes mobile network, Bluetooth network, WiFi) is in default
The problem is, the WiFi.
The phone does detects WiFi hotspots or access points from far (in fact, it can detect my neighbour's home wifi even though is quite far, well, maybe around 20-30m, well, the signal was weak though).
SInce my home wifi is hidden, i pre-set the wifi. but, it wont even connect or even detect my wifi. My Internet TV with WiFI Direct do detected though (no internet connection since it wont host internet to devices who connect to the TV)
But, when i place my S3 like below 700cm range, my S3 detects my wifi and connects like normal devices. But when it get like further than 1m, the WiFi does not receives any data at all and after a while, the WiFi disconnected.
After i bought this phone, i hard factory reset my S3 (before reset, i didnt test WiFi and also from my uncle's advice cuz my phone seems a bit slow, well, he used to have S3). I didnt had a chance to test WiFi until i got home and tried to connect my WiFi.
I've tried many method i found online, (again, the WiFi only works if i put my S3 side by side with the access point/s)
Reboot router (I always reboot them cuz the router sometimes bugging) = not working.
Forget the network in S3 and preset. = not working
Tied with static IP address (connecting to my hidden network)(with google DNS) = not working
Enabled unhidden, open wifi profile on my router, try connect. = not working)
Connect to my TV's WIFi with WPA security = not working (tried to connect but just fails)
Tried *#0011#, Wifi, turn off power saving = not working
Things i havent tried,
reset again the S3
revert to factory firmware (actually, i tried but Kies 3 just wont work at all... it said that the device cannto be initiated or similar... so, the S3 didnt do anything)
using Odin to revert to stock factory rom
using Odin to update to unofficial kitkat rom
before im going to use Odin, which i dont ever done before, do you think that reset this phone to factory setting will fix this problem?
Try changing your router's channel.
yoahmad1995 said:
Try changing your router's channel.
Click to expand...
Click to collapse
if you mean router channel, the N radio, G radio and B radio,
sorry,
mine only supports G. (or maybe B and G. but for sure, no N)(dont forget that i did tried with my tv as well, since my tv has wifi direct but also be connected with usual wpa security. by the way, im pretty sure the tv radio channel supports b, g and n, and usually, they uses N channel for devices that supports N channel).
if thats not the case, then what do you mean?

What is wifi network "0x"?

I've noticed that whenever my wifi is on, and also the "always scanning" option is on - my phone suddenly connects to a network called "0x".
It doesn't really work - there is no internet. It happened in different places, inside and outside my country.
Does anybody know what it is?
UP
Old post, but happened something similar to me. Sometimes when I have just connected to my wifi network and I look on the menu it displays "0x". Your phone was probably connected to a public wifi or just bugged.
Still doesn't explain it though
In my understanding, the 0x is a garbage SSID that indicates that WIFI configuration data is obsolete.
Ite wonderful if u ask me ☺?
I booked a hotel room and when i arrived thr...my device got connected to Ox wifi and it has over 2Mbps speed...so i was curious about this Ox wifi hotspot so i searched on google and i found ur post and now i am more curios about it. What the hell is going on lol...
.
In my opinion it may have some connection with rooted devices bcz my device is rooted and i have samsung s8 as well and it neither finds this Ox wifi nor gets automatically connected☺:fingers-crossed:
Edit: As far as I see, it might a bug of Android with special cases of bad connection. Like it connects somehow, but can't get SSID. Turning on "avoid poor wifi" seems to fix it.
Same here. I've saved two wifi connections: one is my home network, other one is a network of free wifi transmiters offered by my ISP (UPC Wi-Free). My phone is Motorola Moto G with Android 5.1. It's not rooted and never has been.
I live around elder people and there were no strangers so I doubt some grandma suddenly established malicious network. Probably a bug, but the bug of what? Android? Some external software? I use Nova Launcher and Wigle Wi-fi. Do you?
0x seems to be prefix of hexadecimal numbers, but it doesn't make much sense. It wouldn't mean "hexadecimal zero" (which would be 0x0), but "hexadecimal nothing".
danagu said:
I've noticed that whenever my wifi is on, and also the "always scanning" option is on - my phone suddenly connects to a network called "0x".
It doesn't really work - there is no internet. It happened in different places, inside and outside my country.
Does anybody know what it is?
Click to expand...
Click to collapse
I've seen it too, then the actual SSID of my home network appears. Maybe Android shows '0x' when it doesn't know the name of the network it's on.

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