I seem to be having trouble with my 5mp G1 dome and/or maybe the NVR 4ch K1. When I set the cam to H265 it works fine, if I then add the + option after the cam reboots I get a normal picture for about 20 seconds then the time starts to corrupt, any motion is usually slightly corrupt and will eventually stop moving then after a few moments this may clear again. Any ideas what it could be? Does + mode give much in the way of bandwidth savings?