Very strange story with my TP Link mr3420 rev2 router, 4G Yota modem is connected to it via an active hub.
The connection was held for more than a month continuously, there were no dumps.
Today, the modem has fallen off and the router does not see it, on the router itself the usb icon does not light up.
I tried to change the power supply of the active hub, I connected a tester via USB, it shows the consumption of a half ampere modem.
Connect the modem to other ports of the hub.
But the USB icon does not light up.
I connected another active hub, it was determined immediately and the USB icon on the router caught fire.
But when the router itself is turned on, the hub stops taking power from its power supply, it is powered only from the USB port of the router, and when the router is turned off, it is powered again from the unit.
Since my router has a very weak USB power supply circuit, there are constant modem dumps and gaps.
What could be the reason for such strange behavior?Post has been editedMisha898 - 21.06.19, 11:46