I couldn't set up the secondary router (client bridge) using the setup from the picture: I kept losing my connection to the router after disabling DHCP. I tried release and renew and even rebooting my PC, all to no avail. Holding the reset button seemed to be the only recovery.
Instead of using the picture's configuration for my 2nd router, I did only the following in the order listed:
[[ADMINISTRATION > FACTORY DEFAULTS]]
1. Restore Factory Defaults : Yes (only if config was changed after last restore)
[[WIRELESS > BASIC SETUP]]
2. Wireless Mode : Client Bridge (Note: this automatically disables DHCP but comms with router is not disrupted, which is what seems to happen when explicitly disabling DHCP)
3. WIRELESS NETWORK SETTINGS : match primary router setting
4. Click Save settings button
[[WIRELESS > WIRELESS SECURITY]]
5. WIRELESS NETWORK SETTINGS : match primary router setting
6. Click Save settings button
[[WIRELESS > ADVANCED SETTINGS]]
7. Authentication Type : match primary router setting / Shared Key if WEP
8. Click Save settings button
[[SECURITY > FIREWALL]]
9. SPI Firewall : Disable
10. Click Save settings button
[[STATUS > WIRELESS]]
11. Click Site Survey button
12. Find primary router by SSID and click its Join button
