That is the IP we verified with all our systems. The error you're getting is unrelated to any control mechanisms on our side.
I see you're trying to connect using us.geekshed.net, tell your client to use irc.geekshed.net instead. Keep in mind that our round-robin was changed, see here for details:
https://www.geekshed.net/2015/02/round- ... rovements/Verify your firewall is not blocking the connection. Also if you're using anything like OpenDNS, it commonly blocks IRC connections because of a false positive attributed to botnets. If everything is clear on that end, try connecting on our website with the web interface:
http://www.geekshed.net/chat/ - if that fails then it appears something on your end is blocking it. You can also try port 6697 which is standard SSL, that sometimes gets around filters and blocks.
Thanks,
-Amy