I recently bought a new wireless router (a Linksys 802.11n). The power failed and my brother had unplugged it from the surge protector and into the wall >.< . Well a day later it was acting haywire, it was very difficult to connect to wirelessly and would disconnect after about half an hour. The final straw was when it automatically changed its own settings back to default, and my network suddenly became horribly insecure. I have some dangerous ports open, and have a lot of full access file shares setup (including the C: drive of each computer). I had it set up to be pretty secure before (WPA with a 14 digit passkey, and a MAC filter which only includes my laptop, and a ICMP filter to prevent port scanning). I decided to take it back for a replacement, because it seemed like a corrupted FET or possibly a burnt out resistor.
Now I have a new one (the same router) and recently it's been exhibiting the same behaviour. It hasn't reset its own settings, but it has been randomly dropping. At first I thought it was lack of compatibility with my 802.11g wireless card (although n is supposed to be backwards compatible from the ground up). But the internet has been also dropping from my desktop computers (wired).
I really don't want to think it's the brand of router, since Linksys is owned by Cisco, which makes industry standard networking equipment. Has anyone seem any problems like this before? Any help would be appreciated! (sorry about the long post)