I'm having trouble changing our services from direct connections to three-tier. I get error messages when doing so. Can I get some guidance? I change the connection properties to port 5151, and that should be all, right?
Direct Connect doesn't requrire a hostname, so changing the port often isn't enough. What version of ArcSDE are you using? Is the application server service running? What exact error messages are you receiving (as text, preferrably)? - V