Updated Synapse Version and Element chat client can no longer connect likely due to some database issue

Hello,

I updated my Matrix Synapse version to 1.128.0 and Element chat Version 1.12.6 is no longer able to connect to the server. In element I get an error saying Connectivity to the server has been lost and it’s stuck on loading.

I’ve attached the Matrix Synapse logs:

I tried downgrading the synapse version to older versions but then the logs say that the database is incompatible. I’ve also tried resetting the tor connection of the embassy both wiping state and not (several times with no luck).

Any thoughts on what’s causing the issue and how I can fix it?

Hi iglooshelter!

The Synapse logs show no errors—all operations (health checks, notification rotation, cache maintenance) complete normally.

Next Troubleshooting Steps

Confirm health checks appear green on the Start9 Synapse service page. If so, copy the homeserver’s .onion address from the Interfaces tab and paste it into Tor Browser (ensure it’s connected to the Tor network). You should see “It works! Synapse is running on your Start9 server,” verifying external client reachability.

If unreachable, verify your local Tor setup or network blocks; Tor connections can have higher latency. A full server reboot often resolves transient issues—let us know the results.

Hi h0mer,

Thanks for the help. The health checks appear good on the synapse service page. When I try the .onion address, it does not work and it says Onion site has disconnected (The most likely cause is that the onion site is offline. Contact the onion site administrator.)

I reset tor connections and did a fully embassy reboot. Unfortunately it seems like the whole embassy is unreachable by tor currently, even though the other services were working fine in the last few days. Here is a screenshot of the tor logs.

Hi again,

Tor logs look healthy, which means Tor should be working fine on the server side and you should check the Tor setup on the client you use to connect. Do you use the Tor Browser to access Tor? Can you reach other onion sites that are not related to your server, for example our Start9 Tor site? As for Matrix, you need to switch federations in the configuration in order to reach it.