When you loose connection watch the front..is it restarting?
When the router restarts, the Power light will blink several times then stay solid once restarted.
Have you ever updated the firmware? If not install the latest firmware.
If your router is a wireless model, click
here to skip directly to the relevant Linksys Downloads page.
I strongly advise against updating your firmware to DD-WRT v24 RC6.1 as I nearly bricked my router by updating to that version. I was able to send the DD-WRT v23 SP2 firmware via TFTP and recovered the router, but it still cost me 3 hours to fix my mistake.
When DD-WRT announces a stable release version of v24, I plan on upgrading then--and only then. Release candidates and betas are fine for software, but not a good idea for firmware that gets installed on $60 routers (I run a WRT54GL).
Oh, and speaking of model numbers, check your router model and version number before even attempting to upload the DD-WRT firmware to your router. If I remember correctly, later versions of the WRT54G/S routers don't play nicely with DD-WRT firmware.
Is anyone using bittorrent? Many linksys routers do not like bit torrent.
See
this uTorrent FAQ answer for more information.
I use uTorrent version 1.6.1.0 and have my router configured according to the instructions quoted below:
* The following instructions are for DD-WRT v23 or later only.
* Enter the following values at 'Web-Admin -> Administration -> Management -> IP Filter Settings'
* Maximum Ports: 4096
* TCP Timeout (s): 300 (decrease if you have many TCP connections)
* UDP Timeout (s): 300 (decrease if you have many UDP connections)
* Save Settings and then Reboot Router
On a related note, I strongly advise against running any version of uTorrent higher than 1.6.1.0 as the developers crawled into bed with the MPAA after 1.6, so later versions may not be safe.
If your router is wireless check and make sure your cordless phone are not in the 2.4 range. If they are you will have continuous issues until you replace the phones as they are interfering with each other.
I had a problem where I was unable to connect and stay connected to my wireless router, which was only 5 feet away. I changed my broadcast channel from 6 to 11 and it worked fine after that.