@Government_Bacon I would try reinstalling the firmware and Duet Web Control in case they are out of sync or have another issue.
As you can't connect to the web server, temporarily remove the SD card from the Duet. Depending on what board you have, copy the "Duet2CombinedFirmware.bin" (Duet 3 Wifi/Ethernet) or "DuetMaestroFirmware.bin"(Maestro) into the /sys/ directory on your SD card from here: https://github.com/dc42/RepRapFirmware/releases/tag/2.03
Also copy DuetWiFiServer.bin if you have a Duet 2 Wifi
Copy the "DuetWebControl-1.22.6.zip" contents into the www directory, overwriting what is there.
at the same time you can grab a copy of your config.g from the /sys directory and post it here so we can have a look.
Put the SD card back in, connect a USB cable and a terminal program like YAT, see here (https://duet3d.dozuki.com/Guide/1.)+Getting+Connected+to+your+Duet/7#s6)
And send M997 S0
If you have a Duet 2 Wifi then send M997 S1
Once they have completed you can reset the board and try the wifi again. You have now replaced all the firmware and the web server. If it still does not work, upload the config.g here