[Q] Roaming problems (troubles on business trip) - Galaxy S 4 Q&A, Help & Troubleshooting

While everything is working perfect "at home" .. but I had quite some problems on my trip to Amsterdam .. I will try to summarize:
- I had to manually connect to my company's wifi even though the access point should be "known" to the phone. I have no Idea why since at home it simply connects to my wifi. Formerly this was not a problem - the phone connected automatically. Could have something to do with 4.3? Happened while phone was in Airplane mode (wifi manually set to on) and while phone was in roaming mode.
- When I quit airplane mode I see a stop sign - I don't get prompted to enter the sim pin. So I have to reboot the phone to get gsm working i.e. see the signal indicator.
- In roaming mode not every network operator worked. The phone e.g. saw Vodafone NL but the network wasn't available for a connection. T-Mobile worked.
- I was not able to make a data connection over any Roaming Network. I assume this is for the reason that I had no APN for that provider. Shouldn't the phone receive the correct APN "over the air" ? Or is Omega lacking an accesspoint list that works for roaming? This is puzzling me.
Any help is much appreciated. Who can shed some light?

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Problems with data connection

Once setting up Wifi, I cannot make my data connection work.
I know it is set up and working properly because Weather and Stock Tabs are updating fine, but all other programs cannot use data connectioin (e.g. error response in Opera, Mail, etc)
I have set up in Connection according to Internet and Company (not sure how this is called in English) but it does not work.
Does anyone have similar problems? And how do i fix this?
can we have some more info?
What happens if you turn the phone connection off in comms manager, but leave the wifi connection on?
What error are you getting?
Is your wifi router set to block any particular type of traffic?
With wifi it works fine, just my 3g data connection does not work.
i have tried numerous settings, changed, deleted, softresetted. nothing can make my HD connect through 3G
H(sdpa) and E(dge) symbols appear next to connection strength which signalizes it is connected after i switch data connection on. but whatever program i try to connect, all give me errors. i assume they keep trying to connect with either wifi or something else.
there were some times where i could update stocks and weather tab, but at same time opera, msn, google maps, etc. all gave me connection errors (could not connect etc.)
sometimes it appears when i delete an entry, it re-appears again. maybe i have to do hard-reset if there is no solution at all.
Get your network to send you a config text with the settings. Also have they activated hsdpa for your account?
sure i tried that all. also tested other prepaid cards (vodafone, o2), with all of them the problem appears to be the same. they all work on my old phone, just not on HD.
im afraid only a hardreset will help.
what happens if you turn wifi off via comms manager (making sure phone connection is still turned on)
does it update weather / stock then?
PS which mobile company are you with, and in what country?
I have a similar problem.
But in my case it often helps to disconnect the 3G connection and reconnect. In most cases Opera can then load the desired page.
Network is O2 Germany.

Bug when moving off WIFI on to Mobile Data

Hi,
I've noticed atleast 4 times that my phone doesn't connect to a mobile network from data when away from a WIFI connection.
So when I'm at home, the phone is connected using WIFI and all works fine. When I leave home, the phone should be connected via a mobile network (i have Settings>Wireless & Networks>Mobile Network set), but it doesnt seem to connect when I try and use the browser. If I restart the phone or unset then set "Mobile Network", then the phone seems to pick up the mobile data connection and function normally.
Has anyone else seen this?
Cheers,
Ash
Sometimes, mine will switch automatically but very often it will not. It hasn't been a problem for me but I agree that it should switch over without us having to manually turn Mobile Network off and then back on again. Anyone have any ideas? I'm using the Bell stock, unlocked on AT&T.
I know this thread was originally started some time ago but I thought there would be others with similar issues as mine and mashed_ash but. Please, post if you have any ideas. Thanks.

Cant connect to 3G

Hi
Trying today my new phone, I see that I cant connect to 3G networks. I put the sim in it, got signal (with a tiny R up in the bars), can call but I don't get any icon of 3G, so if i dont use wifi I dont have connection.
With my old HD2 android works without problems and I dont need to configure anything, it works out of the box. Here I tried to force GSM mode only instead of auto and connect to a specific network but doesnt work either.
My operator it is a reseller of others so I have marked the checkbox of roaming data and all that stuff, but nothing, it doesn't connect.
Any idea?

Problem with Mobile Internet Connection

Hey forum,
i go away from home and i have no more wifi connection.
Then i suddenly get a connection to mobile internet (EPlus) first.
As i am in an area without a connection and i come back to EPlus, i can use my phone for telephone and SMS but i get no internet connection automatically.
I must use the airplane-mode to totally logoff and 5 sec later go out of airplane-mode. In this way i get the internet connection back.
My wife has the same problem with Incredible S and GingerSense 1.3.
Is this maybe a problem of EPlus? Or is there anyone with tve same problem and another provider?
Andreas
Perhaps it's your wifi giviing you problems, going bad.
Sent from a dream.
If the signal of your provider (in this case Eplus) is weak, it might not find it right away.
Also, try going into Settings>Wireless settings then under Network mode, check if it says GSM/WCDMA
This setting will try to connect to 2G or 3G whichever has the strongest signal, however if both are available, 3G will be selected.

[Q] After Lollipop update my G2 doesn't automatically connect to my wif router

When I check "Settings-->Network" the Wifi section says "Connection Available". However, it won't automatically change to wifi from my 3G service. For example, if I leave home my phone switches to 3G, but when I return home it stays on 3G. I had no problems with this on KitKat.
I've tried rebooting my phone, forgetting my connection, playing around with some of the "Advanced wifi settings", but nothing seems to help.
I'm not absolutely sure, but I think my phone DOES automatically switch to the free wifi hotspots provided by my cell company. Could there be a setting my router that may help?

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