Originally Posted by
EXDAC
Have you checked for pin to pin continuity? Have you checked that no pin is shorted to any other? If neither of those fault conditions is present I see no reason to re-crimp.
Isn't the biggest problem with Ethernet that a straight cable was used when cross-over was required ( and vice versa)?
Almost all Ethernet equipment which I've come across for quite some time now will auto-sense the cable type and adjust accordingly so I'd be surprised if you need a crossover cable. If you've done
T-568B at both ends you should be fine I think.
In your shoes I would be looking to test your Ubiquiti kit with a known good cable and/or test your cable with some other devices. If you can connect two laptops together through it and they connect at 1000MB then your cable's good.
What sort of LAN tester do you have? Some [cheap] types are basically just a dc continuity/short-circuit tester. Just because a cable passes at dc that doesn't mean it will work at Ethernet speeds - particularly if you need GBit. A proper LAN tester will confirm 1GB speed and give you error rates etc.
If you've made the same wiring mistake at each end of the cable it will pass the continuity check but may fail as an Ethernet cable. The coloured pairs have different twist rates which are carefully designed to reduce crosstalk interference at high frequencies.
How experienced are you at crimping Ethernet cables. It took me a while before I reached an acceptable success rate, though my use of the cheapest crimp tool I could find didn't help.
Provided you've got plenty of connectors and spare length on the cable then it won't do any harm to have another go. Do one end first, try it, then do the other end. If nothing else it will be good practice
.
Double check you've got pin 1 correct and all colours as they should be.
Is your cable suitable for the connector? If you have multistranded cable then I think that needs a different type of connector body, and is harder to work with. I've never used it myself.
Good Luck.