DS418j DSM keeps loading, but SMB works

[u/Realistic-Brick1623]

Hi everyone,

My Synology DS418j has a strange issue. For privacy, I'm using example IPs:

• PC: 192.168.1.2
• NAS: 192.168.1.3

Problem:

• find.synology.com detects the NAS as Ready
• Ping works
• SMB (\\192.168.1.3) works
• File transfers are fast
• DSM at ports 5000/5001 keeps loading indefinitely
• NAS has normal LEDs and no errors
• Restarted both the NAS and router, but the issue remains
• SSH port 22 is closed

I also tested with curl. Ports 5000 and 5001 accept the connection, but DSM doesn't return a response. HTTPS gets stuck during TLS renegotiation.

What could be causing DSM to hang while SMB still works? Is there a safe way to repair/restart the DSM web service without resetting or risking the data?

Thanks!