I change it back to automatically detect settngs but later in the day it reverts back to automatically detect proxy settings.

Virus? Setting?

I'm currently running scans on the PC's in question (this is happening among multiple PC's)


Also, our Agency is lookng into a different AV. ANy ideas? (this is for an Agency and only corporate AV's will be considered ie: not AVG, MalwareBytes, etc... )
Our vendor is suggesting Sopho's. Does anyone have experience with this?

Are you certain there are no add-ons installed that affect proxies?