Cisco 3600 Router and Multilink PPP issue

[elhnet2000]

We provide a customer of ours currently 6 T-1's in a Multilink group using a 3620. We have changed the cabling from the router to the smartjack. We also have successfully tested head to head with the Telco using a TBird. The T-1's currently show CRC errors. The Multilink group does not. We fedd them from a 7206VXR which doesn't not show CRC errors either. Any help would be great.

 

[tschouten]

Cable length, cables themself perhaps? Though you did say yeou tested things just wondering if you tested the cables?

 

[elhnet2000]

Cables were tested using a fluke. Passed everything. They are only about 25 feet long.