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Old 04-04-2006, 01:42 PM   #1
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DHCP problem or hardware?

Hi Everybody.

I am having a little problem and I am not sure if it is network related or possible hardware failure.

I am using a Belkin ADSL router with two wire machines and one wireless laptop. One box uses FC5 (among other distros) and one uses Ubuntu and the laptop is WINXP. As soon as I boot up in FC5 and the IP address is assigned by the router, the connection light begins blinking rapidly and I lose my internet connection until I unplug the router, effectively rebooting it. When it does this, I cannot contact anything on the network. As soon as the router is rebooted, I can connect again until it suddenly happens again, requiring yet another reboot of the router. It is not unsual for this to occure four or five times until the router finally stays stable for a few hours.

My question is this: Is it possible that one of my machines may be acting as a DHCP server in conflict with the router causing this? I have two NIC cards in this machine (eth0 and eth1) but only one is active at a time. One card is on board (Marvell Gigiabyte) the other is PCI (Davicom). It seems to happen more when the Marvell is active, but does also happen with the Davicom card, which Slackware uses because it does not recognize the Marvell NIC.

I have struggled with this for several weeks now and cannot determine if it is software or hardware trouble.

Any thoughts appreciated.

Old 04-04-2006, 07:44 PM   #2
Registered: May 2004
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try testing each machine on the network one at a time, then two at a time....then..
Old 04-06-2006, 02:49 AM   #3
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Just wanted to post a follow up note just in case it helps anyone else. Finally, after weeks, figured this one out. It is not the router causing the problem or anything to do with the network. It turns out that it is the silly little transmitter I use for the downstairs TV to transmit my TV signal upstairs (saves having to have a separate satallite reciever.) Although my network is predominately wired, I do use the laptop wireless with this router. Turns out that this little device transmits at the same frequency as the router and was shutting down the router. Unplugged it, no more problem. Now just need to figure out a work around.



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