I'm currently expierencing some very strange behavior. When I try to contact a ssh server (which hosts some SVN repos), I get "Connection refused".
That goes for 5 to 15 minutes. And somehow after that period it starts working.
The same is happening with my emails, IMAP connection to a different server. Browsing the web and pinging the server works just perfect. Any idea what I can look for? What could cause that?