update docs.

docs/getting-started/troubleshooting.md

@@ -4,15 +4,18 @@ Neko UI loads, but you don't see the screen, and it gives you `connection timeou
 
 ## Test your client
 
-Some browser may block WebRTC access by default. You can check if it is enabled by going to `about:webrtc` or `chrome://webrtc-internals` in your browser.
+Some browsers may block WebRTC access by default. You can check if it is enabled by going to `about:webrtc` or `chrome://webrtc-internals` in your browser.
 
-Check if your extensions are not blocking WebRTC access. For example, Privacy Badger or Private Internet Access blocks WebRTC by default.
+Check if your extensions are not blocking WebRTC access. Following extensions are known to block or does not work properly with WebRTC:
+- Privacy Badger
+- Private Internet Access
+- PIA VPN (even if disabled)
 
 Test whether your client [supports](https://www.webrtc-experiment.com/DetectRTC/) and can [connect to WebRTC](https://www.webcasts.com/webrtc/).
 
 ## Networking
 
-Most problems are networking related.
+If you are absolutely sure, that your client is working correctly, then most likely your networking is not set up correctly.
 
 ### Check if your ports are correctly exposed using docker