Hi
Guys thanks for your help I solved it with a SRV DNS entry. What had happened to me is we created a new PDC and primary DNS server which Ranger wasn't installed on, so when I ran RAM v2 on the original server it couldn't resolve properly.
Investigated dns issue....
checked log files on Server - C:\Program Files (x86)\Sentinel Products\Ranger Account Manager\ConfiguratorTrace
found dns log entry from 2010 =
2010-08-18 15:48:34.373, Sentinel.Ranger.RAM.Configurator.DnsAddRecord, Void Apply(), Entered, serviceName_ = _RAM._tcp.st-gregorys.internal, ttl_ = 300000, target_ = ST2.st-gregorys.internal, port_ = 55001
Manually created SRV record & restarted Ranger Account Manager Service on ST2
Ran RAM as administrator = all now seems to be working
Hope this helps anyone with a similar issue.