Originally Posted by unitron
Have you given everything on the network that doesn't travel outside the house a fixed IP address?
Is everything in agreement about exactly what encryption is being used?
(since different manufacturers tend to use different names for the same particular version and level of encryption, you might want to have the Wikipedia page open when you check)
Regarding encryption, I don't think that's an issue. If I disconnect the range extender, the tivos 'see' each other. When the RE is connected, the Tivos' signal strength doubles.
Pardon my ignorance, I'm not exactly sure how to mix static IP addresses with DHCP assigned addresses. Is it as simple as assigning a static address to each Tivo in Settings|Change Network Settings?