Finally. I changed my IP and can confirm that problem is solved.

Try to check your RAM with something like memtest86

Complicating things never was a good idea. Also VPN definitely will affect network latency.

You guys not understanding where is the problem. Problem is in network connection. Impossible to connect if your IP is filtered on remote side. You can perform any rituals without any result.

There can be only one solution - change your IP.

Thanks for advice - but lowering dat setting was first thing that I did before ask any questions in internet.

Hello!

I'm that person which Kresh is talking about. Met him on reddit, having same issue. Can't join official Stockholm servers with "4 retries" error. Can join any other servers: community, official Luxemburg and of course - official Tokio/Honkong/Dubai (from Kiev).

I'm familiar with networks and how it works. So made some investigaion.

Pretty sure that my IP or whole IP range (my ISP support refused to help me with scan by some reason). I can reach (by ICMP ping) IP of Stockholm servers but can't reach UDP port which server listening. Scan with nmap from my IP shows that port is closed, from online looking glass service shows that port is open.

But UDP is slippy thing. To be sure I just took my laptop and visited my bud to try connection from another IP with my steam account. And as expected - I had no any problems to join official Stockholm servers.

Steam support just ignoring problem, even not sure if I talked to human. They said that can't help me to solve my issue and I can try to ask for help on official forums. Alredy did this before without any result. http://steamcommunity.com/app/440/discussions/0/359543951702683246/

Solve this can only techies in Stockholm DC, contact them is barely impssible for me. Steam support can do this but prefers to ignore existence of the problem.

Any suggestions?