@exrtc Hello there!
We're sorry to hear about this connection error your friend received.
This is something we like to offer our connectivity troubleshooting steps for. Following our connectivity articles here, is a way to ensure the software has its best chance of being able to communicate with our servers. Making sure that this troubleshooting is carried out allows us to fix common problems, or move on to more tailored troubleshooting. If your friend is using a platform other than PC, please let us know.
After following this guide, if your friend is still encountering issues, please be in touch, and let us know which error message/code they're seeing.
Temporary sanctions are administered by an automated system and as such, Ubisoft Support are unable to alter them. Apologies for any inconvenience caused.
Many thanks.