My parents have to turn power off the modem and the router to access the INTERNET, it has BECOME quite a nuisance.  Most of the time the computer will gain connectivity to the router (according to wireless connection wizard) but they still cannot access the internet until the power disconnect ritual is performed.   The modem is a Speedstream which connects to a D-Link router via a cat5 cable; the router also has wireless capability.

Any ideas?

ThanksWhat exactly is connected to the router? DESKTOP(s), laptop(s)? Which one is having problem? Are other computers OK?
What happens when you connect straight to the modem, bypassing the router?What I ENDED up doing with my router was completely resetting it, and that resolved the issues.

Also, check for router firmware updates. I experienced this problem myself a few years back (on my laptop). I used to have 3 bars reception, but after a period of time, there was no internet access unless I restarted my router and modem or rebooted my laptop. The problem resolved once I moved my laptop closer to the router.

Why that was happening I'm not sure, possibly interference. There were 3 walls, 1 of which was brick and a microwave in between my laptop and router.

The only computer hooked up to network is a laptop in which we usually use the wireless connection.  I while back a tried directly connecting the modem to the pc and if I remember correctly it did not work still unless I rebooted the the modem.   Unfortunately (or forturnately ) I dont live there so troubleshooting is done in spurts when I visit.   Post back, when you're there.I've seen a similar issue, and it was the connection to the ISP. It would hose up the linksys, but could be seen by the link light on the modem.

What exactly is the ritual? Can they just reset 1 device to fix it?

If the modem/connection is messing up, the router could hang and would NEED to be told to reconnect.