Easy DIY Repair Guide for Your TP-Link Powerline Device

I'm using several Powerline adapters (TP-Link AV 2000) to connect my security cameras to my network, primarily to avoid running network cables everywhere and drilling holes in external walls.

Recently, a Powerline adapter failed, causing me to lose access to a couple of cameras. I noticed that none of the LEDs on the adapter were lighting up. However, the adapter's socket for plugging in other devices was still functioning.

When I opened the adapter, I discovered that the socket was a direct passthrough from the plug, so there was nothing wrong there. But the rest of the device seemed to have no power when I checked it with my multimeter. Searching online for repair advice (using the search term "TPLink Powerline adapter rep

air"), I found numerous YouTube videos for various models. A common issue was the failure of a power capacitor (typically 470uF 16V). This was a clue, and when I tested that capacitor with my multimeter, it turned out to be the problem—even though there were no visible signs of failure.

The next step was to order some high-quality 470uF capacitors, that arrived the next day. After replacing them, everything worked perfectly. The diagram below shows the replaced capacitor highlighted on the board (to the right of the transformer)

This was one of those rare occasions when DIY actual fixed something and also showed demonstrable ability to "save" money (not counting the fixed costs of the multimeter, soldering station, etc. LOL).