I have a server with SQL 2000 on as a default instance, and I can successfully access this remotely.
I have now added an additional install of SQL 2012 as a named instance, but I cannot work out how to access this remotely from SSMS.
I have tried connecting to <Server Address>\<Instance Name> but I cannot.
I have checked that the SQL Browser service is running.
I have opened UDP port 1434 on both Windows Firewall and the external firewall.
What do I do next?