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Resolving hardware or driver issues on channel NICs

This issue can be caused by:

Old/wrong drivers on the channel NICs
If the physical connection for the VMware Channel connection uses a hub or Ethernet switch, a hardware fault may cause the channel to drop
Defective Ethernet patch or crossover cables
Improper configuration of the NICs used for the channel connection
ISP problems in a WAN environment

To resolve the issue:

Verify that channel NIC drivers are the correct/latest versions. This is a known issue with HP/Compaq ProLiant NC67xx/NC77xx Gigabit Ethernet NICs but may affect other NIC types as well. See vCSHB-Ref-116 or VMware vCenter Server Heartbeat and Gigabit Ethernet NIC Drivers (NC77XX) (1008383).

When uninstalling network adapter drivers you must remove the VMware vCenter Server Heartbeat Packet Filter driver. Upon reinstall of the network adapter driver, you must reinstall the VMware vCenter Server Packet Filter driver. For more information about uninstalling and reinstalling the Packet Filter driver, see vCSHB-Ref-353 or Installing and Uninstalling the VMware vCenter Server Heartbeat Packet Filter Driver (1009567).
Verify hubs and Ethernet switches are operating properly. Identify and replace any defective components.
Test for defective Ethernet patch or crossover cables and replace if defective
Correctly configure the NICs used for the channel connection
Check the physical link for ISP problems

vCSHB-Ref-992

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