First off, scrap that "anti-virus" and get a decent one.

Personally, I like AVG Anti-virus, but there are a lot more, and there are references to some of the preferred ones at this topic

As to Permission denied, it might help if we knew just what server you were trying to connect to?
Sometimes if two networks that were merged have difficulties and split, then permission to access Network A using Network B's servers is denied (logically if Network A and Network B aren't working with each other).