I'm having a ton of trouble with this. I have a site that is has HP Procurve switches and a Cisco router.
I'm seeing about 10% of all frames show as FCS Error Rx. My port stats are showing around a 5% link utilization.
Originally the links were not properly auto-negotiating (switch was trying 1GB, where the Cisco is 100mb). I hard set the switch port to 100mb, cleared my stats and watched. Still hitting about 10% FCS Rx Errors.
I'm having someone onsite replace the patch cable. Outside of that, I am at a loss of what to do next.