Computer Problems? Computing.Net has over 1,000,000 posts about all things technology related! Over 90% answered within 24 hours! Click here to start participating now! Also, be sure to check out the New User Guide.
I am running a 50 ft rj45 and it will work on 2 of our laptops but not on any of 3 desktops I have tried. Our cable tester says it is ok. Any ideas????
Name: wanderer Date: October 30, 2009 at 14:02:46 Pacific
Reply:
how did you wire it, xover or straight?
0
Response Number 2
Name: jefro Date: October 30, 2009 at 14:32:16 Pacific
Reply:
Wander may have the idea. It may be that your old cable's were either one or the other.
Try the desktop again but reboot it with the new cable installed. See if it auto corrects. Usually almost all modern nic's support a built in way to correct for cable type. Desktop's don't tend to do it unless you reboot.
Playing to the angels Les Paul (1915-2009)
0
Response Number 3
Name: jamesf Date: October 30, 2009 at 14:50:15 Pacific
Reply:
Cable is straight through. Rebooting does not make a difference.
0
Response Number 4
Name: wanderer Date: October 30, 2009 at 15:37:26 Pacific
Reply:
What are you connecting with this cable? pc to pc or pc to switch? Your cable tester just does pinouts correct? No crosstalk/transmission tests?
What pinouts 568A or 568B did you use?
0
Response Number 5
Name: jamesf Date: November 3, 2009 at 05:56:30 Pacific
Reply:
attaching to a switch. 568A
0
Response Number 6
Name: wanderer Date: November 3, 2009 at 07:56:01 Pacific
Reply:
I would suggest redoing the ends. You shouldn't unravel more then 3/8" of the lines to then insert into the ends.
0
Response Number 7
Name: kev100 Date: November 3, 2009 at 13:59:15 Pacific
Reply:
(If possible) Have you tested all computers with the same switch and a shorter pre-made cable....just to rule out any other issues?
> PLEASE HELP OTHERS - Report back what did/didn't work for those referencing this thread.<
0
Response Number 8
Name: networkguy1977 Date: November 5, 2009 at 11:39:53 Pacific
Reply:
568B would be the more common standard for UTP
0
Response Number 9
Name: jamesf Date: November 5, 2009 at 12:10:59 Pacific
Reply:
First, The ends have been redone several times. All desktops work with 6 foot cables. 2 laptops work with the long cable. BUT none of the desktops work with the long cable.
0
Response Number 10
Name: wanderer Date: November 5, 2009 at 13:00:20 Pacific
Reply:
The switch it connects to, is it a managed switch? Heres what I think 1. not a switch that supports mdi/mdix 2. laptops nics support mdi/mdix 3. cable is miswired 4. cable works with devices that can autocorrect the wiring [mdi/mdix] 5. pcs nics can't do mdi/mdix
To know for sure you need a true cable tester not just a pinout tester.
Summary: You only need plenum cable if it is an actual air return duct. Not just over one of those panel type ceilings, but a real air return. Some offices have those but not very many, mostly in computer cle...
Summary: Hai All! I have a cable which is just 30 meters long. But i connect this cat5 cable between my switch and my system it does not ping. It is a new cable and 2 edges are well connected using rj45 co...
0 
