Recently we switched from DSL to Cable. We have the battery backed-up modem that stays powered on after having power disconnected.
I've setup our WRT54G router with this modem back to its original configuration that worked fine under DSL.
- Changed subnet to 192.168.2
- Changed ssid
- Enabled WEP
- Change admin p/w
After setting everything up, all PCs/devices in the home appear to work fine.
On a power outage at the router, however, things start to go haywire. Nothing can get past the router for Internet access. I've confirmed that by plugging directly into the modem, I will get Internet access. Also, devices appear to obtain an IP address from the WRT54G. I can browse to the router's settings page without a problem. I've tried renewing the routers DHCP lease with the modem. This has no effect. I've renewed DHCP from the PC trying to gain Internet access-- again no effect.
The only thing that has an impact is resetting to factory defaults and rebuilding the exact same config from scratch. Then everything magically starts working. This is rather annoying as we do lose power somewhat frequently.
Before I reset to factory defaults and reset the configuration, one thing I did was save off the current, seemingly broken, configuration. I reset to defaults and reconnect-- I can get Internet through the router. However once use the config file I saved off, everything stops working again.
At first glance maybe the router's configuration became corrupt and this is reflected in the config file that I saved off?
Has anyone else experienced similar problems? Is it possible that a power loss would corrupt the router's configuration this way?
Firmware Version Linksys Ver.4.21.1