At the office we have about 40 computers connected to two 24-port TP-Link switch. The switch was in operation for about 3 years. But suddenly entire led light started to flash on one of the 24-port switch. During flashing all connection were disconnected. There are 21 computers connected to this switch.
Thing I have try
1. Removing some connection to the other 24-port switch. (problem solve)
2. Random result; adding 1 – 3 connections back sometime causes the flashing disconnecting problem, sometime it doesn’t.
3. Removing and reconnecting the same working port can also cause the entire switch to flash.
4. Try power off all switches, hub, router, and our server. Didn’t help