// auth credentials.
    rawSocket?.closeQuietly()

    val nextAttempt = attempt + 1
    return when {
      nextAttempt < MAX_TUNNEL_ATTEMPTS -> {
        user.callConnectEnd(route, null)
        ConnectResult(
          plan = this,
          nextPlan =
            copy(
              attempt = nextAttempt,
              tunnelRequest = nextTunnelRequest,
            ),
        )
      }