My MultiBit is unable to connect
For anybody with common problem. It was DNS related problem.

Message from console:
01.01.14 21:06:52,881 mDNSResponder[38]: mDNSSendDNSMessage: write msg length failed -1/2
01.01.14 21:06:52,882 mDNSResponder[38]: ERROR: mDNSPlatformWriteTCP - send Broken pipe