We have here a TL-SG2210P V1
It was working fine for quite a while as desktopswitch on a SFP-Fiber-uplink.
Now we had to switch to RJ45 due to Maintenance of the fiber and the switch just stopped working totally.
The Power-LED of the PSU is just slightly flashing. If we unplug the RJ45 from the UL-Switch the TL-SG2210P boots up fine.
POE is disable both on the UL-Switch and the TL-SG2210P. We also tried to leave the PSU of the TL-SG2210P away and power it with the UL-switch as POE-PD unfortunately this switch is booting but the connected POE-PD's are not supplied.
Is the switch somehow damaged?
Are we thinking/doing somehow wrong?
Is there any way to use the TL-SG2210P with uplink by RJ45 cat 6 from another switch?