We recently did an office expansion and in the new office i connected 2 3COM switches. The two switches are interconnected with a Cross-over cable. From these swithces there is a main link cable connecting to my main server switch. I have problem with the 3COM switches. Its 3COM baseline series 3C16471. In one of these switches, from one fine day, all the 24 LEDs are lit up steady. I removed cables one by one but the case is same. I even did a power cycle, but the case is same. I kept the switch off for 2 days and then tested. It worked fine for one day then same problem occured again. I replaced that with a similar model 3COM switch but the issue persists. All the 24 LEDs are lit no matter if its connected with cables or not. The LEDs are not blinking but steady.
I am not sure if the problem is with any of the CAT 5e/6e cables i used for wiring. Once all the LEDs are lit up, then no matter what I do the issue remains the same. Because of that i cant unplug cables one by one to see which cable is defective.
How to find a solution for this issue.
Temporarliy most of the used points i connected to a different brand switch and it works fine.
Thanks in advance.