I have a D-Link WBR-1310 router. It worked fine on Thursday evening. Now my laptop and my TIVO cannot even detect the router. I have tried resetting it and even unplugging the router and plugging it back in. My desktop, which is directly connected to the router, is able to access the internet while connected to the router. Why is it not transmitting a wireless signal throughout my house? Do I need to reinstall the software or is there a fix that I can download? I have had this router for 2 years and have never had issues until now. Thanks.

I suggest you RESET the D-Link back to the default setting and configure the wireless settings again.
To reset the D-Link back to the default settings -
Press and hold the RESET button at the back of the router with the power ONuntil the LEDs flash at the time the release the RESET button.
Connect a LAN cable from the D-Link to your laptop/computer's LAN port, openthe browser on your laptop/computer and enter the D-Link's configuration URL..
http://192.168.0.1
The default login = admin
The default PW = blank (just press Enter) You can now change the default password.
You can now configure the wireless settings. Now configure the wireless card in your computer/laptop withthe router's wireless settings.
To secure your wireless network from unauthorized access,please click on this link and follow my instructions :- http://www.fixya.com/support/r3559128-wireless_router_security