Hi,
I just re-entered my username and password ito the Server Registration in Enterprise Manager and it says the same thing.
I think might be a DNS issue with my ISP or somehting, I have tried to contact their support about it to no avail. If I try to connect using my reseller domain it fails, but if I use jodoshared it works fine.
Coincidentally, my mail server was again unreachable this morning, hence the conclusion that if nothing is wrong with the SQL Server, that my ISP has DNS problems.
I will wait to see if I can get a response from my ISP.
Thanks,
Luke.