Why is synapse not working?

I'm curious, why exactly is synapse not functioning as it should be? Have you encountered any specific error messages or performance issues? Are there any recent changes in your system configuration or network settings that might have affected its operation? Additionally, have you tried restarting the synapse service or clearing its cache to see if that resolves the issue? I'd appreciate any details you can provide to help narrow down the potential causes and find a solution.