issue while installing arduino-connector on upsquare

While installing arduino-connector through Arduino Cloud - Getting started. Getting:

We were not able to establish a connection between the Arduino Create and your Intel®-based Platform. Make sure your Platform is correctly connected to Internet and you have filled out the Proxy Settings if you are behind Proxy.

I have properly filled proxy and other detail but still getting the same problem.

Also tried to install directly on upsquared but getting below issue:

Generate private key
Generate csr
Request certificate
2018/04/24 05:09:13 requestCert - POST https://api2.arduino.cc/devices/v1/********:8bef555d-b36f-41a7-88f3-7a5774ef2531: expected 200 OK, got 401 Unauthorized

I am also getting similar error with upsquared

===
We were not able to establish a connection between the Arduino Create and your Intel®-based Platform. Execute commandline: Process exited with status 5

====
arduino-connector.log has below information -

[sudo] password for up2: Version: 1.0.115
current configuration: id=
url=
http_proxy=
https_proxy=
all_proxy=
authurl=https://hydra.arduino.cc
apiurl=https://api2.arduino.cc
cert_path=./
sketches_path=
check_ro_fs=false
env_vars_to_load=

Generate private key to dump in: certificate.key
Generate csr
Request certificate to dump in: certificate.pem
2020/01/01 14:00:43 requestCert - POST https://api2.arduino.cc/iot/v1/devices/: expected 200 OK, got 412 Precondition Failed

May I request help to resolve the issue.