Mini-Me
08-13-2010, 11:14 PM
This is one I simply cannot figure out.
Trying to get network connection going in an office.
For a start, due to lack of pairs in the multi-core network link cable back to the 32-port switch, I only routed through the green and orange pairs - this has worked fine in the past and I was expecting no problem.
Electrically, pins 1,2,3 & 6 connected, and tested OK with multimeter, but no connectivity nor can you ping.
.
After checking things twice, and reversing the orange and green pairs incase I had the A and B standards reversed at one end of the link, still no ping or connection.
Next, I "Stole" two pair from another rooms network socket(which is not currently being used, but is wired back to the switch), and routed the other two pairs(blue and brown) back to the switch, so that all four pairs are from the office socket, back to the switch, but still no connectivity.
Test laptop rebooted several times, and tried on other known-to-be-working outlets, and ping and connectivity working fine on them.
"Wiring error" I hear you all say - put CAT-5 network tested on both ends of the cable - injector at switch end(but not on the switch, obviously! - on the end of the cable to the office), and the remote terminator on the office end.
This thing is box with 8 LED's on it at both ends that step through all 8 cores one by one, so you can see visually if there are any disconnected cores, or LED's out of sequence indicating crossed pairs etc.
BOTH ends of the cable test 100% OK in terms of both electrical connectivity and sequence.
Remove tester from both ends, put the cable back on the switch and office, still no connectivity.
Try several other ports on the switch, including ports currently in use and known to be working at the other end - no connectivity. Try putting laptop directly into switch port, bypassing the cable, connectivity and ping WORK on any port, including the one that the new office is on. Put office cable back on the port just tested with the laptop, no connectivity or ping at the office end.
I am totally stumped on this, and there is no electrical reason I can think of why it should not be working. :confused:
While it is true that I am not a networking expert, I consider myself intermediate, and this is certainly not the first network connection I have setup - I have done lots of them before with nothing like this kind of problem.
I am about to plop a 5-port switch on the next office's working network port, and run a back-feed back to the trouble office - that would get the network going in that office, but I can't for the life of me work out what the hell is stopping the one I put in from working.
Anyone here got any pointers, because for all intents and purposes, it should be working if there is conductivity back to the switch, and the wires are in the correct order.
Run length would be about 80 meters - within the 100 meters or so limit.
Trying to get network connection going in an office.
For a start, due to lack of pairs in the multi-core network link cable back to the 32-port switch, I only routed through the green and orange pairs - this has worked fine in the past and I was expecting no problem.
Electrically, pins 1,2,3 & 6 connected, and tested OK with multimeter, but no connectivity nor can you ping.
.
After checking things twice, and reversing the orange and green pairs incase I had the A and B standards reversed at one end of the link, still no ping or connection.
Next, I "Stole" two pair from another rooms network socket(which is not currently being used, but is wired back to the switch), and routed the other two pairs(blue and brown) back to the switch, so that all four pairs are from the office socket, back to the switch, but still no connectivity.
Test laptop rebooted several times, and tried on other known-to-be-working outlets, and ping and connectivity working fine on them.
"Wiring error" I hear you all say - put CAT-5 network tested on both ends of the cable - injector at switch end(but not on the switch, obviously! - on the end of the cable to the office), and the remote terminator on the office end.
This thing is box with 8 LED's on it at both ends that step through all 8 cores one by one, so you can see visually if there are any disconnected cores, or LED's out of sequence indicating crossed pairs etc.
BOTH ends of the cable test 100% OK in terms of both electrical connectivity and sequence.
Remove tester from both ends, put the cable back on the switch and office, still no connectivity.
Try several other ports on the switch, including ports currently in use and known to be working at the other end - no connectivity. Try putting laptop directly into switch port, bypassing the cable, connectivity and ping WORK on any port, including the one that the new office is on. Put office cable back on the port just tested with the laptop, no connectivity or ping at the office end.
I am totally stumped on this, and there is no electrical reason I can think of why it should not be working. :confused:
While it is true that I am not a networking expert, I consider myself intermediate, and this is certainly not the first network connection I have setup - I have done lots of them before with nothing like this kind of problem.
I am about to plop a 5-port switch on the next office's working network port, and run a back-feed back to the trouble office - that would get the network going in that office, but I can't for the life of me work out what the hell is stopping the one I put in from working.
Anyone here got any pointers, because for all intents and purposes, it should be working if there is conductivity back to the switch, and the wires are in the correct order.
Run length would be about 80 meters - within the 100 meters or so limit.