docs: append troubleshooting

packages/appium-tizen-tv-driver/README.md

@@ -268,6 +268,8 @@ npm run watch
     - Report this issue in [bug report](https://www.tizen.org/ko/community/bug-tracker/how-report-bugs)
 - `data-focused=""` property on an element/the page source hierarchy would indicate the element is currently haveing "focus"
     - It needs chromedriver automation
+- A new permission popup appears if the same name of token generated by `wscat -n -c wss://<device host>:8002/api/v2/channels/samsung.remote.control?name=<base 64 encoded string>` establishes more than two sessions
+    - Then, the later sessions will get the popup while the "name" has already been granted permission. Please make sure one TV has one WebSocket connection for the `remote` controller mode with the same `name` (`host` in this driver case)
 
 ## Credits