We have been noticing print system lockups are due to changing frpo h0 to 99 from 0. Any settings other than 0 may affect the amount of user available memory, resulting in eventually print lock up. In a lock up, you will be able to ping and tel-net but not access the web page /print or connect with any utilities. Hope this helps.

We've been having a number of problems with print/scan U locking up as well, after which one can ping but not print or access web interface. Once we diabled Rendevous support in the print system, we haven't had any recurring calls. This was originally a tip from our technical rep, this may be something to look at as well.