@ReakChaos Good day, Thanks for your photo, the powerline rate was affected and become slow by possible powerline noise or interference around the home. You could follow this instruction and remove...

@Hammer_69 Good day, For now the firmware is the latest firmware for your powerline KIT. Red powerline Led means the powerline adapter/extender is in a location with a poor signal strength. We...

@ElleTi Hello, Thank you for your valuable feedback, here is a newer firmware for TL-WPA4220 V5 EU version, please give it a try, thank you. TL-WPA4220(EU)_V5_210305 If it does not help, do you mean...

@artorias Good day, They are compatible with each other, and you could try to pair them by Pair button again: Please add extra powerline unit into existing powerline network by pair button referring...

@MJARPB Hello, May I know do you use WPA4220 V1 and the latest tpPLC Utility on website? You could try suggestion here: 1. If WPA4220 V1 can not see "Global" icon, please try below beta tpPLC...

@VeryConfused Hello, In theory, all the TP-Link powerline devices on sale can work together. In the real network environment, it would be better if we use the powerline devices with same powerline...