yes i tried it before, it return the same server name.

Well i think the problem is that installed instance on the online server is the default instance, so it does...

i didnt try it...just the subriber doesnt have a static IP, thats why the online is the publisher because it has a static IP

the online instance im trying to connect to is the default instance...

and as i said , i can connect to it using the SQL Server Management studio, just this error...