Update connect-to-private-database.mdx (#17672)

Author: thomasgauvin

src/content/docs/hyperdrive/configuration/connect-to-private-database.mdx

@@ -165,3 +165,8 @@ npx wrangler deploy
 ```
 
 If you successfully receive the list of `pg_tables` from your database when you access your deployed Worker, your Hyperdrive has now been configured to securely connect to a private database using [Cloudflare Tunnel](/cloudflare-one/connections/connect-networks/) and [Cloudflare Access](/cloudflare-one/policies/access/).
+
+## Troubleshooting
+
+If you encounter issues when setting up your Hyperdrive configuration with tunnels to a private database, consider these common solutions, in addition to [general troubleshooting steps](/hyperdrive/observability/troubleshooting/) for Hyperdrive:
+* Ensure your database is configured to use TLS (SSL). Hyperdrive requires TLS (SSL) to connect.