Wireless Networks Thread, Excessive CRC/Alignment Errors on port in Technical; Many of my HP Procurve switches are reporting "Excessive CRC/Alignment Errors on port". This has only just stared happening in ...
10th February 2009, 11:53 AM #1
Excessive CRC/Alignment Errors on port
Many of my HP Procurve switches are reporting "Excessive CRC/Alignment Errors on port". This has only just stared happening in the last 2 weeks (according to the switch logs). Why would this suddenly start happening to some switches/cabling and computers now, when they have been in place for 18 months now?
Also, would the affect logon times.
IDG Tech News
10th February 2009, 12:02 PM #2
Any communications errrors will slow down the speed of the link. As the PC/Switch will have to resend the information that didn't make it. The more errors, the slower it gets.
The usual cause of this is either:
1) Buggy NIC drivers.
2) A physical cable fault.
3) Mismatched speed/duplex settings.
4) Sending tagged VLAN packets to a port that's not expecting them.
10th February 2009, 05:11 PM #3
- Rep Power
Im also getting the same issue. At first i thought it would down to nic drivers but its happening on different models of PC and even printers.
I use HP 5406zl Switches with the latest firmware!
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