I get an error 323 during setup - Linksys WRT54G2 Wireless Router

Try supping the black drum with the yellow, If you get a diffrent fault code replace the black drum.

Service Engine Error 181.2049 Maint failed to prime back pressure

This error most frequently happens during the initial printer setup. Another reason for this error to occur is when using malfunctioning cartridges or cartridges that do not have enough ink to complete the initial setup of the printer.
Inserting a new set of setup cartridges or by using the setup cartridges provided with the machine would resolve this issue. To identify whether you are using the setup cartridges.
If you are already using the new setup cartridges, unplug the power adapter from the back of the printer and re-plug it after five seconds and let the machine attempt a second initial setup.

http://homecommunity.cisco.com/t5/Wireless-Routers/error-323/td-p/444457

the following warning that were detected during this boot. these can be viewed in setup on the event log page. warning- chassis intrusion

Dont Run the setup disk on you computer. Connect your ADSL Modem to Linksys router on Internet Port and your computer to Port No.1 on your Router. Open an Internet Explorer browser page.In the address bar type - 192.168.1.1 Leave the username blank & in password use admin in lower case...Once login to the Router setup page, Below setup tab , change the Local Ip to 192.168.2.1 and click on save settings. Once done sucessfuly. Unplug the Power from Router and Modem wait for 30sec and plug the Power to modem first wait for 30 sec and plug the power to linksys router, and try going online.
LINK

Are you trying to setup your router using installation CD.
Try setting up your router manually.
See Linksys router setup

Look here please ... http://www.fixya.com/support/t2904877-error_323

Hi, try resetting the router settings to default using the RESET button at the back. Configure afresh.

Stop using the setup disk. It does not work. Connect to your router via a web browser to 192.168.1.1. Username blank, input your password and configure the router as normal.