For what it's worth, this does seem to be a profound coincidence. The flashing lights are new, and started about four days ago. I installed the TP-Link device five days ago. The house has had no...

I've recently purchased a TL-PA9020P kit in order to replace a wifi connection to a server that's in a concrete-walled room. The TL-PA9020P gives much better performance when compared to wifi,...