Hi All, we have a Cisco 3825 router which does not work well with a DSL modem(ISP provided). I have configured the Gi0/0 port of the router to plug into this DSL modem but it does not ping to the ISP gateway. If we do a shut/no shut on the interface then it work fine for about 30 secs. Sometimes even for 1 hr. Then the packets drop and we cannot pass any traffic through this interface.
Now, if the ISP connection is terminated on a computer it works fine. It works fine without dropping any packet.
I have tried various options like using a straight/cross cable. I have tried to configure the interface negotiation for 100/full, 100/half, auto/auto and almost all the options.
I have also tried to interconnect the devices using a L2 device like a HUB. Nothing works.
Any recomendation on this? Has anyone seen this kind of a behavior?
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