|I would suggest you try the following:|
1) Recycle the power on the router and configure/save the WLAN (wireless LAN) settings. Then recycle the power again. Are the settings still there? If yes, you're done. If not, go to the next step
2) Go to the manufacturer's website and look for newer firmware for the device. If there is newer, download and install it and again configure your WLAN and recycle the power on the device. If the settings stay, you're done. If not, go to the next step
3) Look for newer drivers for your network interface and install them if you find some and try reconfiguring/recycling the router again.
4) The last thing I can think of trying is ot get someone you know with a laptop to come over and connect to the device and have them try to configure and save the settings.
If none of the above does the trick, there may be a hardware issue with the router and I would then consider replacing it.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.