Don
Buy one of these..
http://www.ebay.co.uk/itm/RJ45-CAT6...589436?hash=item4ae078bebc:g:kJEAAOSwuMFUb4n6
Only run it on NON powered cables.
IE, from the network cable to the other side of the network cable, don't connect it up to a switch or PC/NAS etc.
Try it on a single cable in your hands first to see how it works. Basically, each light from 1-8 should light up on both ends if it's working correctly. Should light up in that sequence.
It's the most basic network tester you can get. Better ones are over £100.
http://www.ebay.co.uk/itm/RJ45-CAT6...589436?hash=item4ae078bebc:g:kJEAAOSwuMFUb4n6
Only run it on NON powered cables.
IE, from the network cable to the other side of the network cable, don't connect it up to a switch or PC/NAS etc.
Try it on a single cable in your hands first to see how it works. Basically, each light from 1-8 should light up on both ends if it's working correctly. Should light up in that sequence.
It's the most basic network tester you can get. Better ones are over £100.