Thanks to my great house and the number of devices I need in a certain room, my setup for the past 4 or so years has been
[Cable Modem] -> [DIR-615 Router] -> [WRT54G Wireless Client Bridge] -> [Cisco 870]
It's worked almost perfectly, rarely needing to be reset, and almost every time it did it was a problem with the cable modem.
I recently inherited a D-Link DIR-655, and decided to modify my network to end up with this:
[Cable Modem] -> [DIR-655 Router] -> [DIR-615 Wireless Client Bridge] -> [Cisco 870]
I didn't need to change anything on the 870 and it worked, but the not consistently. The 870 loses internet access often. Sometimes it gets it back, and sometimes I need to power-cycle it.
Given how well it worked before, is there some firewall / port setting I no longer remember that I need to take care of? I'm happy to read a manual if one is available, but the Cisco documents I've seen so far don't discuss this topology, and I can't connect the 870 to the cable modem or wire it directly to the router.
Thanks for any insights you can offer.