Connecting UM4730 to SV9300 via IP. For some reason the station ports on the UM4730 will not register to the SV9300. Says "disconnecting" and then gives error message. Programming on SV9300 looks OK, AVST says they are good. Not sure what the issue is at this point. Anyone been successful and have any "cheat" sheets to verify setup once more. Able to connect IP set to the SV9300. But, every now and then the IP sets goes off, reboots and then comes back. Wondering if a network issue. Customer has spanning tree on which has always been a problem with NEC and says they can't turn it off.