Development for LHC@home

I'm trying to add LHC-Dev to a linux machine (on VirtualBox) to test xtrack app
But i have this message: "Fetching configuration file from https://lhcathomedev.cern.ch/lhc-dev" and boinc manager stucks

I've tried 3 different distos
I've tried to connect to other projects without problems

Yeah I just noticed it has a new application today
Linux running on an AMD x86_64 or Intel EM64T CPU 0.02 so that must be why I don't get any.

Still freeze during "add project"

I'm trying to add LHC-Dev to a linux machine (on VirtualBox) to test xtrack app
But i have this message: "Fetching configuration file from https://lhcathomedev.cern.ch/lhc-dev" and boinc manager stucks

I've tried 3 different distos
I've tried to connect to other projects without problems

Might be you used the wrong master URL.
Try this one:
https://lhcathomedev.cern.ch/lhcathome-dev/

Try this one:
https://lhcathomedev.cern.ch/lhcathome-dev/

No, i'm using, since the beginning, the correct url.
The project requests me to accept the condition of use and to insert the mail+pwd
After that it stops during the animation of the dot moving between two pc

I'm using boinc 7.22.1 on a Linux Mint 20 virtual machine

I wonder where the URL "https://lhcathomedev.cern.ch/lhc-dev" comes from (it was you who posted it).
Please
- open a console on the computer that fails to connect
- change to the BOINC working directory
- run the following command
- post the output

find . -maxdepth 1 -name "*.xml" |xargs -I {} grep -H "://lhcathomedev.cern.ch/lhc-dev"

Solved.
I change the password of my account.
Restart boinc manager, use the new password and it works!!

P.S. Before, no message of wrong password.