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I am getting high pings to my Cisco 801 router whenever it is in use. What could be the problem?

I am getting high pings to my Cisco 801 router whenever it is in use.

If I am offline I get 2 ms pings to it, but when I connect it goes up to over 50 ms, sometimes as high as 500-1000 ms if I am downloading.

I have triple checked everything on multiple computers and I can't see any reason why it would be doing this. If you could help me it would be greatly appreciated.

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I would suggest you to run trace route and check the routing table of your router. There may be some router/pc, which might be sending extra routes to your router and hence increasing the response time.

Also please note that when you are offline and do a ping it is sent locally on Ethernet interface and any of your machine on the LAN will respond which will be anywhere between 1 to 10 ms. But when you connect your serial interface is up so response will be delayed and will also depend on your service provider.

I would suggest you to use extended pings and trace route to further zero in on the problem.

This was first published in August 2003

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