I had a miserable time setting up configuration manager.
Try this:
VCM Server Address: FQDN of VCM server
VCM Server Port: 1433 (unless you changed the default port for SQL)
Database Name: dbname;useNTLMv2=True (type it in exactly with no spaces and use correct Punctualization, in between dbname and useNTLMv2 is a semicolon)
Database Instance: blank unless you're using an instance
User: Username (without domain criteria)
Authentication Method: Windows Authentication
Windows Domain: Your Domain Name, may also try your NETBIOS domain name if different
Good Luck