NS8 Migration: Error retrieving apps to migrate

Trying to migrate from NS 7.9 to 8, I get this error:
Error retrieving apps to migrate
This is the dump that shows on the console:

Traceback (most recent call last):
File “/usr/lib64/python3.6/urllib/request.py”, line 1349, in do_open
File “/usr/lib64/python3.6/http/client.py”, line 1254, in request
self._send_request(method, url, body, headers, encode_chunked)
File “/usr/lib64/python3.6/http/client.py”, line 1300, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File “/usr/lib64/python3.6/http/client.py”, line 1249, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File “/usr/lib64/python3.6/http/client.py”, line 1036, in _send_output
File “/usr/lib64/python3.6/http/client.py”, line 974, in send
File “/usr/lib64/python3.6/http/client.py”, line 946, in connect
(self.host,self.port), self.timeout, self.source_address)
File “/usr/lib64/python3.6/socket.py”, line 724, in create_connection
raise err
File “/usr/lib64/python3.6/socket.py”, line 713, in create_connection
TimeoutError: [Errno 110] Connection timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “/usr/sbin/ns8-join”, line 190, in
update_routes_response = call(api_endpoint, “update-routes”, payload[‘token’], update_routes_request, False)
File “/usr/sbin/ns8-join”, line 45, in call
post = request.urlopen(req, context=ctx)
File “/usr/lib64/python3.6/urllib/request.py”, line 223, in urlopen
return opener.open(url, data, timeout)
File “/usr/lib64/python3.6/urllib/request.py”, line 526, in open
response = self._open(req, data)
File “/usr/lib64/python3.6/urllib/request.py”, line 544, in _open
‘_open’, req)
File “/usr/lib64/python3.6/urllib/request.py”, line 504, in _call_chain
result = func(*args)
File “/usr/lib64/python3.6/urllib/request.py”, line 1377, in http_open
return self.do_open(http.client.HTTPConnection, req)
File “/usr/lib64/python3.6/urllib/request.py”, line 1351, in do_open
raise URLError(err)
urllib.error.URLError: <urlopen error [Errno 110] Connection timed out>

Hi Jeff, nice to see you back. You did it right: you posted the error message. This is a fundamental condition to understand what is happening by your side!

If NS8 is configured with the default VPN endpoint, NS7 is trying to send UDP packets to the NS8 FQDN, port 55820. If the NS8 FQDN is not correctly resolved from NS7, an HTTP connection through the VPN times out. Run this command to verify how NS8 FQDN is resolved in NS7:

getent hosts <NS8 FQDN HERE>

Thank you for your response. My response to gent hosts mail2.swankfam.xyz is: mail2.swankfam.xyz mail2 which is correct.