I am having an issue with an Actiontec GT701-WG DSL Modem/Wireless router. We recently flashed the firmware, but it was done incorrectly. We got the most recent firmware for the correct modem on it, but now when I go to the wireless settings, I go to turn on the wireless access and click apply, and it goes back to the page as if I had not turned it on. I have contacted Qwerst and they are less than helpful.

Any ideas on how to fix it?

After you changed the firmware, did you re-configure your settings to mirror the earlier settings?