I am having the same issue. The sys-whonix control panel up the right hand side on the xfce bar is having a padlock with “X” sign (I guess that means it is disconnected from Tor network).
However, when I click on that icon > sys-whonix > “Tor control panel” button, the opened window restarts the Tor connection and it says, “Tor status: Connected to the Tor network!”, all the while, the padlock icon is still with the “X” sign.
Furthermore, whonix Tor browser during this get timeout errors, while other untrusted qube Firefox is able to connect to the internet.
Any suggestions?