Sounds like a complicated issue. You may try to email the tech support of TP-Link to see whether they can help

Hi, Do you use LED control? You can send an email to TP-Link support at support.usa@tp-link.com about this issue, and it's better to send the whole system log and the router's config file with the...

SR20 is not sold officially yet, it's still under test, it will support more when it's ready.

CPE510 is not suitable, i think, as it is directional. are the two building in the same power circuit? for extending signal outdoor to another building, the better way is two CPE, one is connected to...

when you are in, you can customize the extender settings there.

are these two access points get ip address from the router? usually the router will show devices which are assigned an ip address from it.