Originally posted by: FeathersMcGraw
The maximum length for a 10-base-T Ethernet run is 100 meters.
Originally posted by: FeathersMcGraw
Are the machines located in different places when you use the 3m cable versus the 10m one? You could have an EM source located along the length of the run. Otherwise, it very well could be that you have two bad 10m cables (or possibly that they're incorrectly labelled as crossover).