OK, apparently this is not over...and to be honest it's getting quite ridiculous:
I still have the problems described in the OP...the ridiculous part is that it's following a distinctive "pattern":
- the problems occur only every second day. That means monday=problems, tuesday=all good, wednesday=problems, thursday=all good and so on. Crazy, right?
-the problems apparently always occur at a specific time frame, mostly between 6 and 7 p.m.
When this "pattern" strikes again, I get
zero connection, this time not even with Firefox. I'm only able to solve these problems (for one day

) by running my virus scanner (finds nothing though), and restoring the system right after that. If I do only one, it doesn't work.
I've tried almost every known and reliable virus and malware scanner (Avira, Malwarebytes, SpyHunter, Combofix, AdAware) and all say my system is clean. As this is pissing me off seriously, I'm on the brink of re-installing Windows, but I'd like to avoid reinstalling all my tiny little helper programs if possible.
Bottom line: what the hell is wrong with my system? I'd appreciate
any possible hint.
