Troubleshooting Ethernet PCI Adapters
Checking Cables of Ethernet PCI Adapters
If your system cannot communicate with the network using a particular Ethernet port, make sure that the Ethernet cable is properly connected to the port and that the ACT/LNK LED on the port is lit. For information about the cables for Ethernet PCI adapters, see “Cabling Requirements of Ethernet PCI Adapters” on page
•The maximum distance between a U575 PCI adapter or an embedded Ethernet PCI adapter and a hub or switch is 328 ft (100m).
•The maximum distance between a U574 PCI adapter and a switch is 902 ft (275m).
For U575 PCI adapters or embedded Ethernet PCI adapters configured at 100 or 1000 Mbps,
You can also run diagnostic tests on cables. For more information, see “Using PROSet Utility Diagnostics” on page
Verifying Link Data Rate and Mode
If a problem persists when the network cables are properly attached and the distances are within acceptable limits, examine the data rate and duplex mode (full or half) of each Ethernet PCI adapter and its link partner. Verify that these values are appropriate and that they are supported by both the adapter and the link partner.
For more information, see “Configuring Link Speed and Duplex Mode” on page
Checking the Network Statistics
If there is a viable link between each Ethernet PCI adapter and its link partner, but network connectivity is still intermittent, check the network statistics for the individual adapters and associated teams to see if there are any errors.
Look for the network statistics in the Network Driver tab of a particular adapter or team in the PROSet utility (Figure
