100 Mbit link is very slow. What to do? |
Question: ========= I made my own cable to go to the hub. When trying to connect the 10/100 3com PCMCIa card to the hub using the cable, it will only work at 10MB. When it tries to work at 100MB, the 100mb light turns on, I can ping but lots of timeouts, also, connecting to other machines it painfully slow. Something is wrong. Answer: ======= One of the possible reasons is that your link from the computer to the hub is not fully Category 5 compliant. Check the following: - are you sure that your cable is Cat5? - are you sure that RJ-45 plugs you have terminated on this cable are Cat5? - are you sure that your plugs are appropriate for your wire type? (cables can consist of *stranded* and *solid* wires. The RJ-45 plugs and outlets must be compatible with the wire type used) - are you sure that you terminated the cable with RJ-45 plugs correctly? (check it looking at the plugs; there should be no excessive pair untwisting there) - are you sure that there is no excessive bends or kinks on the cable? - are you sure that the cable is supported and/or attached correctly? (for example, attaching it to the wall using staples is absolutely not allowed) - are you sure that your hub and network card both support 100 Mbit? (you can check it using software config program supplied with the card and hub)? |
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