AlexxIT/go2rtc · error

wrong response on

Error message

wrong response on %s

What it means

Do retried the RTSP request after handling auth challenges (401) but the server still returned an unexpected/unacceptable response, so the method's result cannot be trusted. Names the RTSP method (e.g. OPTIONS, DESCRIBE) that failed.

Solutions

1. Check server logs for why the method (OPTIONS/DESCRIBE/SETUP/PLAY) was rejected
2. Verify credentials if the server challenges auth
3. Confirm the URL and method combination is valid for this server

When it happens

Trigger: Thrown at pkg/rtsp/client.go:140 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of AlexxIT/go2rtc@c245815e75 (2026-09-07). Data as JSON: /api/errors/4e0f96e53c74e851. Report an issue: GitHub.

Appendix: source

Thrown at pkg/rtsp/client.go:140

		return c.Do(req)

	case http.StatusUnauthorized:
		switch c.auth.Method {
		case tcp.AuthNone:
			if c.auth.ReadNone(res) {
				return c.Do(req)
			}
			return nil, errors.New("user/pass not provided")
		case tcp.AuthUnknown:
			if c.auth.Read(res) {
				return c.Do(req)
			}
		default:
			return nil, errors.New("wrong user/pass")
		}
	}

	return res, fmt.Errorf("wrong response on %s", req.Method)
}

func (c *Conn) Options() error {
	req := &tcp.Request{Method: MethodOptions, URL: c.URL}

	res, err := c.Do(req)
	if err != nil {
		return err
	}

	if val := res.Header.Get("Content-Base"); val != "" {
		c.URL, err = urlParse(val)
		if err != nil {
			return err
		}
	}

	return nil

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