1760 and ping request timeout

[diannejo]

I have a new 1760. 1 fastethernet, two serial t1 connections. Although all of the desktop applications are working fine, when pinging the router, it may come back with one or two timeouts, out of four. This occurs regardless of how many users are on the router. (The building is not yet occupied.)

We did have some problems with a PC with a bad NIC, and some old NIC drivers causing collisions on one of the hubs, but not on the E0 interface. CRC errors exist, though.

What should I be looking for? Wiring? Router? Hub? Memory?

Thanks!

[deilert]

can you run an extended ping with 50 pings and paste in the results .

[rjackson]

You said fastethernet then called it E0? You also mentioned hubs. You may have a duplex mismatch between the router and the adjacent hub. Do you loose pings when pinging serial address from the other side of a t1?