This problem has started today, 2 hours ago i woke up just to find my steam client not working.
Tried deleting clientregistry.blob- steam updates and gives the same message..
Tried reinstalling steam-same problem.
I have a direct cabel connection, no routers. Tried turning off firewall-no use.
Everything worked fine since HL2 was released and now this without a reason.
No, we have no bears on the streets here in Russia.