Start SC, look for the Log File output in STDOUT.
13 Nov 10:53:22 - Log file: /var/folders/wn/0fn19kcd01q2pb1vt1t2py_w0000gn/T/sc.log
Find the Maki, on Mac/Linux you can do this:
$ cat /var/folders/wn/0fn19kcd01q2pb1vt1t2py_w0000gn/T/sc.log | grep maki
2020-11-13 10:53:36.460  MAIN connecting to maki2045.miso.saucelabs.com - maki2045.miso.saucelabs.com:443
2020-11-13 10:53:36.517  MAIN connecting to KGP server maki2045.miso.saucelabs.com took 55 ms
Warning: curl may not work moving forward. Once a tunnel connects the maki may not respond to curl requests.
Then cURL the maki to make sure its reachable from your network! Here's an example of what you should see if you can reach the maki.
$ curl maki2045.miso.saucelabs.com:443 -v
* Trying 22.214.171.124...
* TCP_NODELAY set
* Connected to maki2045.miso.saucelabs.com (126.96.36.199) port 443 (#0)
> GET / HTTP/1.1
> Host: maki2045.miso.saucelabs.com:443
> User-Agent: curl/7.64.1
> Accept: */*
* Empty reply from server
* Connection #0 to host maki2045.miso.saucelabs.com left intact
curl: (52) Empty reply from server
* Closing connection 0