Hi,
It works now.
I changed the way the proxy is declared using an IP address.
2 files need updates:
I updated UiPath.Service.UserHost.exe.config in both directories:
…\AppData\Local\UiPath\app-19.10.2
…\AppData\Local\UiPath\app-19.10.3
adding the proxy section
I also updated C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config\machine.config with
<system.net>
<defaultProxy useDefaultCredentials="true" />
</system.net>
Thanks again for your help.