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Phone: Samsung Galaxy S3, Mobile data enabled, APN configured for T-mobile

Applications: MightyText, BrowserTexting

Internet connection is working, i can use browsers, gtalk, IMO, etc. The problem is some applications cant connect to their respective servers. Both apps work when on WiFi, but not when using mobile data connection.

The question is how to debug this problem? Is there a way to see what the problem is, see the request, responses?

Update: The behaviour seems to be sporadic. While the above mentioned apps have never been able to connect, now Imo is having problems signing in.

Help please

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You could check your logcat for hints. A trivial reason might be the device having an incorrect date/time setup (make sure date and time reflecting the current date and time; if the offset between reality and setup is too large, it might cause apps to reject returned data packages as being "out of range"). –  Izzy May 3 '13 at 9:11
I have checked the date and time, it is current. The odd thing i have also noticed, the gmail app doesnt notify me about new emails when connected via Mobile data, but when on WiFi it does. –  Zak May 3 '13 at 9:21
Would have been to easy a solution... You might want to consult some related questions: Apps can't connect to internet and Why can't apps connect to the internet? describe similar issues. –  Izzy May 3 '13 at 9:31
I have just checked those questions and checked the suggestions. AutoSyinc is enabled, background data is not disabled. I have tried to manually sync my google account and some of the tabs have synced but these havent: Calendar, Contacts, Internet. Any ideas? –  Zak May 3 '13 at 9:45

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