Ethernet frustration, passes cable inspector, but won't complete link

netguy · 08-30-2009, 12:54 PM

Hello all,
My thanks in advance for any help on this issue.

I have run 2 lengths of Cat6 (it was cheaper than the cat5e I was looking at go figure) and the pull went just fine. The casing (in the areas where I can verify) has not been compromised, there haven't been any kinks or sharp bends. But when I put my RJ45 ends on, it failed the test. So I figured I had just wired it wrong. After redoing both ends multiple times, there was still no luck. Sometimes it would pass if I held the cable tester just right and the moment i moved it, all the fails would come up. So I tried using a couple of krone punchdown jacks. Wired it up to T-568B, pluged in some short patch cables and viola! Greens ALL AROUND! But when I plugged those patch cables into my router and the other into a computer, nothing happens. No lights, no connection, no nothing. Any suggestions as to what I'm doing wrong? Or did these runs just crap out on me and I need to repull (and not be so cheap with my cable?) I'm using a D-Link WBR-1310 which says it has it's own little cable tester, and even it says that the cable is good to go.

But it still says "disconnected" It's done this with BOTH cables. One run is 240' and the other is 120' (roughly) so I should be within the 300' limit for cat6.

I work for a local university's IT department, and I do this pulling and installing cat6 all the stinking time. So I'm stumped.

Suncoast · 08-31-2009, 07:43 PM

There was some cheap 26AWG wire floating around a while back. Should be 23AWG or 24AWG or it won't make good contact with the pins.

08-30-2009, 12:54 PM	#1 (permalink)
netguy Registered User Join Date: Aug 2009 Posts: 1 OS: Windows XP Pro SP3	Ethernet frustration, passes cable inspector, but won't complete link Hello all, My thanks in advance for any help on this issue. I have run 2 lengths of Cat6 (it was cheaper than the cat5e I was looking at go figure) and the pull went just fine. The casing (in the areas where I can verify) has not been compromised, there haven't been any kinks or sharp bends. But when I put my RJ45 ends on, it failed the test. So I figured I had just wired it wrong. After redoing both ends multiple times, there was still no luck. Sometimes it would pass if I held the cable tester just right and the moment i moved it, all the fails would come up. So I tried using a couple of krone punchdown jacks. Wired it up to T-568B, pluged in some short patch cables and viola! Greens ALL AROUND! But when I plugged those patch cables into my router and the other into a computer, nothing happens. No lights, no connection, no nothing. Any suggestions as to what I'm doing wrong? Or did these runs just crap out on me and I need to repull (and not be so cheap with my cable?) I'm using a D-Link WBR-1310 which says it has it's own little cable tester, and even it says that the cable is good to go. But it still says "disconnected" It's done this with BOTH cables. One run is 240' and the other is 120' (roughly) so I should be within the 300' limit for cat6. I work for a local university's IT department, and I do this pulling and installing cat6 all the stinking time. So I'm stumped.

08-31-2009, 07:43 PM	#2 (permalink)
Suncoast Registered User Join Date: Jul 2009 Location: Largo, FL, USA Posts: 389 OS: XPP, Linux, 2003, Cisco	Re: Ethernet frustration, passes cable inspector, but won't complete link There was some cheap 26AWG wire floating around a while back. Should be 23AWG or 24AWG or it won't make good contact with the pins.