Connect to named instance on different domain

I am having trouble connecting to a named instance on a different domain. For example, I am in the domain mydomain.com, the machine is in ops.mydomain.com.

In Query Analyzer I have tried to connect (without success) to:

machinename\instance

machinename

i.p. address

i.p. address\instance

Within the same domain I can successfully connect to

machinename\instance

Any ideas? Also, this machine is part of a cluster...not sure if that matters. I have full permissions to connect to this machine.

ThanksNever mind...the instance was setup to a port different than 1433. We changed it to 1433, rebooted the server, and now I can connect.

One issue though: I can only connect by specifying the i.p. address, i.e.

255.255.255.0\instancename

Using the server name or setting up an alias doesn't seem to work.

Originally posted by banderson
I am having trouble connecting to a named instance on a different domain. For example, I am in the domain mydomain.com, the machine is in ops.mydomain.com.

In Query Analyzer I have tried to connect (without success) to:

machinename\instance

machinename

i.p. address

i.p. address\instance

Within the same domain I can successfully connect to

machinename\instance

Any ideas? Also, this machine is part of a cluster...not sure if that matters. I have full permissions to connect to this machine.

Thanks