Mobile network not available - Galaxy S 4 Mini Q&A, Help & Troubleshooting

Hello,
I recently got my new S4 Mini on the Three network and I've noticed that I have trouble getting any network connection. If I restart my phone I have network for a couple of minutes, but then it goes. My housemate is on the same network on a different phone and has no problems.
I rooted my phone, so I don't know if it has something to do with this. When I scan for networks it can see the network but I can't connect to it.
Has anyone else encountered this?
Any help is much appreciated.
Thanks!

.A. said:
Hello,
I recently got my new S4 Mini on the Three network and I've noticed that I have trouble getting any network connection. If I restart my phone I have network for a couple of minutes, but then it goes. My housemate is on the same network on a different phone and has no problems.
I rooted my phone, so I don't know if it has something to do with this. When I scan for networks it can see the network but I can't connect to it.
Has anyone else encountered this?
Any help is much appreciated.
Thanks!
Click to expand...
Click to collapse
Did you try to have only 3g connection? Not in LTE
Sent from my GT-I9195 using Tapatalk

Related

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 ???

N7100 keeps dropping network - tried multiple carriers. Faulty?

I've had my N7100 for 2 months now and ever since I received it the network will be showing full bars one minute, then completely disconnect the next (the little circle with a stroke through it symbol). It will remain disconnected until I restart the phone, at which point it will reconnect again.
This is an intermittent problem, which occurs on average about 10 time a day. Sometimes it will keep disconnect after only 5 or 10 minutes.
I have tried different sim cards, from different service providers - all have the same problem. When I put the same sim card in a different phone - no problem. So I've definitely isolated the problem to the N7100.
I've tried factory resetting the phone but this hasn't helped.
Is there anything else I should try or does this sound like a fault for which Samsung should send me a replacement device?
Which model are u using? I had the same problem when I just bought the phone.
I realized my phone which is the Lte model was searching for 4g network at times when the reception is poor and toggled to search for 4g network which caused the phone to cut the network because my phone plan only supports 3g.
Maybe try going to mobile network and select WDCMA mode only. See if helps. Otherwise its problem hardware problem
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Mine is the N7100 - 3G only (not LTE) model.
Tried that, and it hasn't helped.
Has anyone else been having this kind of problem?
Did you find a solution to this problem. I am experiencing the same issue.
Sent from my GT-N7100 using xda app-developers app

No Mobile Data

Hi, its my first post on the Z1C forum.
I just got one yesterday to replace my Nexus 5 and am accounting a few things I need help with since I am new to the xperia line of phones.
So my phone looks like this (for data) however I can't browse anything. I have mobile data enabled, national roaming and preferred network being 4G but nothing is working. With my Nexus 5 my data just worked so I am unsure why this is happening here. I can send texts and make calls just fine. Phone is on lolipop 5.0.2
The wifi signal in my room is terrible and its constantly dropping and when that happens I can't do anything with it.
I am on tesco mobile with a 2GB 4G plan.
http://imgur.com/GBhJJEW
--------
Edit: So I looked around I went into mobile network and scanned, found tesco and registered. So I have 3G data now, but 4G isn't registering. Maybe I need to phone up Tesco and ask them.
Or maybe it's just not a 4G mast where you're connecting?
Is problem "no mobile data at all" or "no LTE connection" ?
Can you transfer data on 3G?
If so - check twice if your SIM card is LTE compatible.
I had to adjust the APN on my phone when I first got it as the one it autodetected wasnt correct. Try that out.
Hi so i just got a z1c and this happened to me. I could send and get text/calls even get notifications and updates. I called sony and t-mobile, nether could help me. Then i found a option under "more" in settings to update "Internet settings" find your server and hit ok. Try it out, i hope this helps.
In my case I needed to contact my carrier to enable 4G. Tried it?
Not sent by me.
settings.>>other>>>internet settings>>>download internet and mms settings...
this should do the trick...
Inconsistent Connection
I got my Z1C a few days ago and updated it to Lollipop yesterday. Ever since the update, the phone has been dropping data connection. I don't know what's the initial cause yet but as it stands, in order to get it working again I have to take out the SIM and reinsert it multiple times. I'm watching it carefully tho because it seems to happen whenever I start Candy Crush. Is there anybody else having this experience?

Network broke when LTE selected and Wifi on...... EFS??

Hi
As in title i seem to have a lot of time when my network drops and i have the spinny icon. It seems to be when wifi is connected and network mode is the top one that inlcudes LTE. This all seems to have happened maybe since flashing Fulmics, not sure if that's a coincidence though..
Could my EFS be corrupt? is there Any way to check? My IMEI number is still showing. I've flashed back to stock LG rom using TOT method.
Unfortunately i don't have a back up of EFS, as I only have learnt about needing that because if this problem.
Is it new phone time?
Cheers all
MMM
Anyone else experience this? Any advice?
Cheers
lg g3 network issue
Mistermoleymole said:
Anyone else experience this? Any advice?
Cheers
Click to expand...
Click to collapse
does 2g and g3 network works? or ur facing issue with only 4g network
kp263 said:
does 2g and g3 network works? or ur facing issue with only 4g network
Click to expand...
Click to collapse
Everything works, Its just that I seem to lose network connection when I connect to wifi whilst the phone is in 2g/3g/4g/auto mode. I just get "emergency calls only". If I disconnect from WIFI and restart the network, it tends to come back. If I am in 2g/3g mode, and I'm connected to wifi, everything is fine.
Anyone else experienced this issue?
Sent from my LG-D855 using Tapatalk
Anyone? Any advice? Do I need to throw my phone away?
Sent from my LG-D855 using Tapatalk

No internet with WiFi or mobile network.

Hello!
I have the strangest problem with my Huawei Mate SE and I'd be shocked if you've ever seen something like it. Up until 24 hours ago everything was working mostly perfectly. But now I'm having network issues, and these aren't ordinary networking issues.
I cannot connect to the internet with WiFi or my mobile network. BUT, there is one network that allows me to reach the internet, my home wifi network. I can connect to different networks, I can connect to 4g and 4g LTE, but I keep getting timeout errors going through those.
I've already factory reset my phone and I'm about to return this phone if it can't be fixed. Does anybody have any ideas? Thank you!

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