9
Known Resolutions for Common Problems
The troubleshooting section below shows solutions for three well known Problem Symptoms that can be associated
with a network interface card:
1. No link
2. Have link, but no usable network connection
3. Have link AND a usable network connection, but there is poor network performance
Note:
The Link LED on should not be lit when there is no link
Possible causes of a “No Link”
problem…
Solutions…
1. Dust particles on fiber optic
networking equipment
• Dust particles located on the VF-45
TM
ports of switches and media
converters, and also on the VF-45
TM
plugs of patch cords can prevent
light from passing through. This can result in a “No Link” problem.
Dust particles can be safely removed from these sensitive areas by
using “HFE-Based Cleaning Fluid” (VOL-0570A), another 3M
product.
2. The Media Type of the NIC and
the NIC’s link partner may not
match.
For example:
• The NIC may be configured for 100Mbps and the corresponding
switch port may be configured for 10Mbps. Ensure the media types on
the NIC and the NIC’s link partner are the same.
• If the NIC is connected to a media convertor, be sure that the NIC is
not using the “AutoSense” Media Type (the Auto Negotiation signals
cannot pass through most media converters).
3. The NIC may have been damaged
and is no longer functional.
• Run the 3M NIC Diagnostics.
• Monitor the test result for the:
Internal Loopback
test
and the
ID
test.
• Call 3M Volition Technical Service if either of these tests are a
FAIL.
• If these two (2) tests PASS, proceed to the next step below...
4. A resource conflict in the PC may
be preventing the NIC from
working.
• Run the 3M NIC Diagnostics
• Monitor the test results for the:
I/O
test and the
Interrupt
test. If
any of these tests FAIL, you will need to resolve the PC’s resource
conflict(s).
• If these tests PASS, please proceed to the next step below...
