Wireless Networking 802.11g 
model # Firmware 1.0.release 23
AR315W

If your current version is 1.0.release11
please download this verison
1011_to_1023 (beta)

If your current version is 1.0.release21
please download this version
1021_to_1023 (beta)
upgrading instructions

*note* upgrading the wrong firmware version can damage the router. Please check your firmware version from the status page before upgrading.
Please do a factory reset after upgrading.