Static IP addresses may indeed make your network setup more stable.
Althought I do not use Zone Alarm, I am sure many others here do. I can't see why your units aren't renewing with the same IP address, except, of course, if you are encountering the dreaded DHCP bug. The underlying Replay TV OS (VxWorks, FYI) sometimes requests / renews its IP address without letting the Replay software know. This does cause many problems, and yours could be one.
Static IPs offer other advantages as well. You really need static IPs in order to use IVS and send or receive shows over the internet. That's because you have to tell your router to put the show send or receive through to the proper Replay TV.. and for that you need to know what its IP address is.
I could probably walk you through converting most of your devices to static IP, except the MediaMVP (but I bet even that one isn't that hard).
First of all, what router are you using?
Althought I do not use Zone Alarm, I am sure many others here do. I can't see why your units aren't renewing with the same IP address, except, of course, if you are encountering the dreaded DHCP bug. The underlying Replay TV OS (VxWorks, FYI) sometimes requests / renews its IP address without letting the Replay software know. This does cause many problems, and yours could be one.
Static IPs offer other advantages as well. You really need static IPs in order to use IVS and send or receive shows over the internet. That's because you have to tell your router to put the show send or receive through to the proper Replay TV.. and for that you need to know what its IP address is.
I could probably walk you through converting most of your devices to static IP, except the MediaMVP (but I bet even that one isn't that hard).
First of all, what router are you using?