Oh I might have been unclear there, I copied it and renamed it to just 'omnirc'. I Think there are no extensions but I will check that when I get back to work in a couple of hours.
I put the file first only on the cellmanager ( because that seemed to be what the help files suggest) but I did an omnisv -stop // omnisv -start after putting it there. And then I also put it on the DA server where I stopped/started the service.
the actual firewall guy was not around so someone else tried to get it correct. But failing that, are there any DP logs where I can check which port it tries to go through? So I can be sure that at least the omnirc file is being read correctly.