it's about 1 year later now and i had to reinstall my dads pc and now again or actually still the firewall module just blocks all his internet, we payed for a year and he couldn't even use his firewall.
We are verry near needing a new payment, but to be honest seeing that this problem obviously still was not even resolved....
I really do like avast, don't get me wrong, i use it on my pc to and there it works perfect, nothing to complain.
But on my dads pc it still blocks the net this makes me think of swapping myself to to another brand.
So if anyone can point me to a permanent solution, and please no stuff like dumpfiles here and there, becaus it never is beeing looked at anyways and it's a fresh win xp 32 bit install.
No other firewalls or other virusscanners what so ever.
I'm sorry i am coming of a bit strong, but well it's been nearly a year.