Recently we have been seeing issues with the Samsung Galaxy S3 connecting to Office 365 and in certain cases, On premise Exchange 2010.
Samsung Galaxy S3 cannot connect to Mail using WiFi but can connect using 3G:
The first time you set-up the email, it seems to work fine but minutes later all communications cease. In some cases all HTTPS (secure) traffic goes down too. To cut a long boring story short we have found that the Policies in place on the Exchange are causing this issue. The fix is relatively simple and you should have your devices up and running in no time… (Don’t you love theory, in practice it may be longer)
- Open your Office 365 tenant portal.
- Open the Exchange Settings.
- Click on Phone & Voice.
- Select the Active Sync Device Policy.
- Edit the Device Policy that the affected users belong too.
- Under the General tab there will be an option “Allow devices that don’t fully support these policies to synchronise” Make sure you tick (enable) this feature.
- Save and close.
Here you have a few options.
- Disconnect the Wifi and use mobile data to connect. Then wait for the updated security settings to be pushed to your phone.
- Remove the account from the phone, reboot and then re-add the account.
- In some cases you will need to remove the Active Sync account, Then go into Settings, Security, Device Administrator and remove any admins. Then reboot and try adding again.
Samsung Galaxy S3 GT-I9300MBDBTU (SIII)