Sorry if I cant see the wood through the trees, but I'm setting up Discover and have come into an issue with granting access rights to transfer.

While running the discover.sqluserusermanager.console with operation=granttransferaccountrights on the specific domain users required I'm coming across the generic 'an error occurred during right granting. Blah, blah, error: 40 - could not open a connection to SQL server'

Exceptions are in the firewall.
TCP/IP enabled, as well as the appropriate (main and 127) IPs enabled.
SQL server restarted.

Any pointers would be appreciated, i'm not particularly clued up on SQL.