From my read of that:
'160N works fine as a standalone; works flaky when connected to the BEFSR41 (in "AP-only" mode.) Correct?
That gets it down to three possibilities:
- faulty LAN cable (between BEFSR41 and '160N)
- faulty BEFSR41
(both of these would have the effect of 'dropping' the '160N from the network (and, with it, the DHCP and DNS servers on the BEFSR41.))
- misconfigured '160N. Dollars to doughnuts says that you didn't change the LAN IP address of the '160N, resulting in really wierd network issues.
Instructions for configuring a Linksys router in AP-Only mode:
Cup, many times before, wrote:
Unfortunately, setting up a Linksys router to operate in AP-only mode isn't all that intuitive...
Note: do this with the wireless router NOT connected to your LAN!!!!
First, reset the wireless router (consult its manual.)
Log in to the Linksys (natch.)
Setup > basic setup.
-internet connection type: Automatic configuration DHCP
-network setup: local IP address to one on your subnet, but outside of router's DHCP range (example: my DHCP range is 192.168.0.100~199, my WRT54G is set to 192.168.0.254); subnet mask same as your network (default is 255.255.255.0); ignore gateway and local DNS (leave them blank.)
--DHCP type: DHCP server
--DHCP server: disable
Click Save Settings.
Setup > advanced routing.
-operating mode: router.
-Dynamic routing: interface: disable.
Congratulations! You've set up a Linksys wireless router to operate as an AP + switch only!
And, put a piece of tape over the Linksys' WAN port, so you're not tempted to use it.
Power down your new AP, and reconnect it to your LAN.
(damn, I need to do that FAQ!)