This article is for Canva users accessing Affinity through a verified Education or Nonprofit account.
If you get the error "There was a problem communicating with the server" when trying to Sign in with Canva, it's likely that you have a Firewall blocking the app from connecting to the internet or you're behind a proxy.
Please add the below URLs to your firewall/proxy whitelist. It's also possible that connecting through a VPN can also cause these kind of connection issues.