Hey there @Loveling,
Thanks for reaching out to the Community about this.
Have you tried restarting your PC? This basic step is very simple, but often overlooked.
We also suggest to try after restarting the connection, or try under a different one. If it works with another connection, it's best to contact the service provider of the original network for more information. For example, some shared or public networks (e.g. schools/work/office) might restrict access to certain services, which would explain what happened here.
It's also a good idea to check for firewall/anti-virus software that might be affecting Spotify's performance.
Hope this helps. Keep us posted.