When I leave the office my S4 doesn't seem to want to connect to mobile data. So, I end up with no connection at all. Turning mobile data off and on does nothing at all, I seem unable to establish a connection unless I restart the phone.

It happens occasionally in reverse also, if I go to work (or home, it is not exclusive to a single network) my phone maintains the mobile connection and wont join the wifi connection automatically (and sometimes I need to enter my password to connect to the wifi.)

Any ideas?

Note, my issue sounds the same as this one, though there is no solution there; Nexus One: 3G/WIFI Not Switching


To answer this question, it appears (at least in my case) that the app Skyvi was the problem. Almost all my Android issues (including random restarting) were sorted when I removed that app.

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