@Aakarsh Use your C20 user guide Chapter 6 to configure the device in RE mode. Here's a video guide as well.

@ru-fo If I were you I would stick to these official specs. If the ethernet cable is long enough there will be a voltage dropout. Probably if powered with 12V at the other cable end the voltage may...

@Aakarsh Read through this thread. It's about just the same query as yours. Probably you have the latest FW version.

@ru-fo Check this FAQ.

@mfran2002 Unfortunately either the distance between the APs is too long or the obstacles/appliances between them causing the wireless signal fading. If cabling is possible it would be better to set...

@Aakarsh Which region you are located in ? Can you post the following screenshot: