Proxy authentication failed.

[kscheff]

Running under macOS I cannot get rid of the proxy error. I have disabled all proxies in the my settings, in addition I set this keys in user settings:
user settings.json:

{
    "http.proxy": "",
    "http.proxyStrictSSL": false,
    "https.proxy": "",
    "windsurf.proxy": "",
    "windsurf.proxyStrictSSL": false,
    "http.proxySupport": "off",
    "remote.SSH.httpProxy": ""
...
}

This error message always pops up as soon as I enable the plug in:
Proxy authentication failed. Please check your proxy settings to confirm they are correct. In enterprise environments, consult your IT team for proper configuration.