When wall wiring acts like a good cross over and a bad straight - TechRepublic
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November 4, 2008 at 02:25 PM
techrepublic.20.chsg

When wall wiring acts like a good cross over and a bad straight

by techrepublic.20.chsg . Updated 17 years, 8 months ago

I just ran about 30 ft. of CAT5e from one room in my house to another since I’ve moved two of our three computers to make room for a new baby.

Each end of the long wire is terminated by a rj45 port. I’ve re-checked and rewired it several times to make sure that each port is wired exactly the same (i.e. same color wire is hooked to position #1 on each port, etc.)

However, this does not work as expected. I’m getting anywhere from 20-100% packet loss when connecting a computer in room 2 with the router in room 1 (computer->patch cable->wall wiring->patch cable->router). However, when I connect a computer in room 2 to one in room 1 (computer->patch cable->wall wiring->patch cable->computer), the connection is great.

I have checked the patch cables to make sure that none are crossovers (which doesn’t make sense since I’ve used them all previously to connect the computers directly to the router).

Any ideas?

Thanks!

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