On the initiator host, go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e97b-e325-11ce-bfc1-08002be10318}
expand something that "can be expanded" e.g., 0004 directory. Check MaxNamespaces value (set to something between 1 and 255).
Reboot, and try over again.