Extension does not work - 403 when extension connects to language services

[jwedel]

I've just installed the SQL developer extensions (latest V. 26.2.0) in VSCode (latest V 1.129.0) and could see the database icon in the side bar. The logs show the following:

[07/17/26, 10:47:24.976] [dbtools-ext     ] [INFO ] Activating Oracle SQL Developer for VSCode...
[07/17/26, 10:47:25.007] [dbtools-client  ] [INFO ] Starting server...
[07/17/26, 10:47:25.010] [dbtools-client  ] [INFO ] Server startup initiated
[07/17/26, 10:47:28.075] [dbtools-client  ] [INFO ] Server 'Oracle SQL Developer for VS Code' 26.2.0 running at http://localhost:52169/
[07/17/26, 10:47:28.076] [dbtools-client  ] [INFO ] Language Services connecting at http://localhost:52169/20221610/language-server/oracle-sql/socket
[07/17/26, 10:47:28.081] [dbtools-client  ] [INFO ] Language Services Websocket Created (oracle-sql)
[07/17/26, 10:47:28.397] [language-service] [ERROR] connectServer->error
Unexpected server response: 403
[07/17/26, 10:47:28.398] [dbtools-ext     ] [ERROR] connect error
Unexpected server response: 403
[07/17/26, 10:47:28.398] [language-service] [INFO ] Closing
[07/17/26, 10:47:28.398] [language-service] [INFO ] closed
[07/17/26, 10:47:28.398] [dbtools-client  ] [INFO ] Closing
[07/17/26, 10:47:28.398] [dbtools-client  ] [INFO ] Sending server shutdown
[07/17/26, 10:47:28.398] [dbtools-client  ] [INFO ] dbtools-server process terminated
[07/17/26, 10:47:28.398] [dbtools-client  ] [INFO ] Closed

I restarted VSCode and reinstalled the extension. Nothing worked.