Marshmallow issues

Hi

Updated my HTC OneM9 to Marshmallow.

Whilst Anti Theft seems to operate normally on a cellular data connection, it will no longer update on wifi, and running the ’ Fix connection problems’ option just results in a warning that the ‘mobile data connection’ is disabled.

Any ideas?

Perform a fresh install of AMS 5 and anti-theft.
https://www.avast.com/faq.php?article=AVKB166