Posted 02 January 2012 - 07:13 PM
DVRs and receivers do not need to be on the same physical switch. They do, however, need to be on the same physical leg of the network, and within the same subnet. Network equipment does not have to be made by the same manufacturer, it can be different vendor for all pieces.
I am presuming your network setup, as indicated above, is as follows:
Router port 1 -> Switch 1 -> DVR1
Router port 3 -> Switch 2 -> DVR2
Go into the Network setup on the DVRs. What are the IP addresses and subnet masks displayed on each? (Also, I am presuming they are setup for automatic configuration, in which they are being automatically provided their network information.)
What we want to do is make sure the DVRs are in the same subnet. Typically, the only difference you would see is the subnet is the same on both (255.255.255.0) to allow for a network 253 devices large (usually, much more than a typical residence needs), and the devices themselves will only differ in the last number of the IP address, and at that, usually only a few numbers apart.
We may also be dealing with some sort of VLAN configuration issue on the BEFSR41 router, in which it isolates traffic coming in each port of the router's local-area side interface into a separate VLAN... but this is typically non-standard and intentionally setup by the end user. However, lets try verifying basic network addressing first before moving into higher level problems.