I have run into this problem twice on NW 6.5 OES SP7 EDIR 8.8 SP2. When I Access the NORM page to setup IP Address Access Control filters it will not add the IP address or IP subnets. If I go to an older SP6 system and try this it allowes me to add the IP or IP subnet. The SP6 version lets me save the new IP info where as the SP7 version will not let me save anything. Anyone seen this issue?