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What could be causing my poor network connection?

I am frustrated by a bad network connection at work. I am told we us an "open DSL" circuit. From the wall is a telephone cable that connects to a DSL modem. The modem is connected to a router. I am connected to the router. The connection works for 20 to 30 minutes. I then disconnect the cable from the wall until I see the "network cable is unplugged" message appear on my computer. I plug it back it and the connection works fine for another 20-30 minutes. This happens whether I use my laptop firewall or not. Any ideas what may be causing the problem? I assume it involves the router.
I understand what it feels like when you have a connection like that. Most probably your router is getting flooded by the request and it is finding it difficult to clear its buffers. Before disconnecting next time I would suggest you check the CPU and memory utilization of the router. If it is unusually high, the problem is with the router or the requests you are sending it. If it is not than contact your Service Provider, to check the things at their end. As DSL is a shared media, most of the time SPs over subscribe their links so that it is fully utilized. It may be that the link is saturated and still new users are joining, choking your link.
This was last published in July 2004

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