I think maybe the problem only happens after multiple wrong username/password. Maybe you need to remember your password. ; )

Why don't you find the support to fix the switch? But I appreciate you that you want to fix the problem by yourself. I know nothing about the circuit. : P

SupportHelp wrote I have the same problem.When I enter a VLAN I got the message: The amount of VLAN is full: The firmware of TL-SG1016DE 3.0 is 1.0.1 Build 20170530Any...

As I know, TL-SG108E support IGMP snooping V1/V2/V3.....; )

TL-SG1005D is unmanaged switch, it hasn't the IP address, so you cannot see it on your router. It 's pulg and play, I think your network is working perfectly now. ; )

Hi, guys, TL-SG1005D is plug and play. I think you can connect your PC to your router directly, check whether the devices can work normally, then connect the switch to check whether still has the...