Merciadri Luca wrote at 2010-06-25 04:57 -0500: > For one week now, I sometimes `loose' any access to the LAN and the WAN. > Here is the way I am connected to the Internet: > > ISP (house's wall) -> ISP modem (RJ-45) -> D-Link DIR-635 router (RJ-45) > -> Switch (RJ-45) -> 192.168.0.101 (this computer). > > When trying to use my Internet connection, I sometimes encounter some > load page error from Firefox. Checking the modem's LEDs, I notice that > the RECEIVING and SENDING LEDs are then constantly lighted. Well, this > is not normal. I then try to go to my router's webpage, i.e. 192.168.0.1 > (this is my (LAN) DHCP server for 192.168.0.101 -> 192.168.0.111), and > it does not load. I then reset the router, and everything then works > right once the router has acquired the IP from my ISP's DHCP server. But > if I switch off the router, say, for 10 mins, for example, the modem > continues lightning its LEDs. But when the router is re-plugged, and an > IP address is acquired from my ISP's DHCP server, the modem turns off > the two respective LEDs, and everything is okay on the computers.
You've probably already checked this, but is the switch connected to a LAN port on the router and the modem connected to the WAN port? If the modem were connected to a LAN port, then that puts 2 DHCP servers on one network and causes weirdness.
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