Well I have a Linksys Router BEFSR41 and I have been having nothing but problems with it over the last couple of months. I had one for several years and had no problems. I would say almost 9 years of working and no problem. But it apparently died a couple of months ago.
I went with a new one and it was a little crazy getting set up. Linksys' automatic install is worthless, especially when you have another Linksys wireless router on the network.
Well this one did the same thing after about a month. It just completely died. I couldn't access the admin screen, I couldn't get to the Internet, nothing. I would cycle it, nothing. Well I hooked up my wireless Linksys router and everything worked fine. So I took it back and exchanged it for another one.
Well this one worked a week and it did the same thing. I figured out there is something else going on so I did some deep searching on the Internet and found a solution on the Linksys site. Apparently there have been some changes on the Comcast cable modems lately and they are putting out a bunch of noise and this overwhelms routers and causes them to constantly reset themselves.
But it can be fixed by changing Filter Multicast to Enabled. If you do this, the noise gets filtered and it works fine.
That is it and I am not having any problems now. Yeah!
Now, Comcast service is another matter....