New phone 3 days old.  HTC Desire X, HTC Sense version 4+ Android Version 4.1.1  UK user with Talk Talk

Outlook works with no problems on WIFI but will not do anything on mobile network and will not sync even if I refresh manually.  It shows the last connected time.  I can eventually get it to show a 'connection error' when I want to view a message with lots of data.  I have checked all the settings and quiet time etc to no avail.

Gmail works with no problems send and receive emails no problems with gmail, I can search the internet with no problems and I can download apps with no problems.

I reset phone to factory settings and only installed the Outlook app again from the google andoid app website.  I have not installed anything else to make absolutely sure that nothing is interfering with it.

Any Help would be appreciated.

Thanks Linda