Reset it. Contact tplink support if problem not solved.

You need to use the tplink utility to upgrade firmware, but the utility is not compatible with Linux. Utility is available on website, or from the disk if you have one.

What's the MODEL #? And LED status? Check the Ethernet port on the powerline by changing cable, computer.

What's the model number? How do you connect it to your camera? Directly through Ethernet?

What's the model number of your extender? What's the light status? Do you see any finish button? You can just finish, then check light. No need to wait for the page to load. BTW, you are recommended...

Never heard of it. How many bulbs do you have? Do you mistake one for another?