"No routing servers available" problem

I followed the installation tutorial at Debian-based distributions (.deb) - Operations Manual to install it on a Debian 13.2. The service is running.

Than I ssh tunnel to that system with

ssh foobar@xyz.example.com -L 7474:127.0.0.1:7474

After realizing that Safari is not a perfect choice for this I fired up Chrome and opened http://127.0.0.1:7474/browser/ there I tried to connect but got this error message:

ServiceUnavailableCould not perform discovery. No routing servers available. Known routing table: RoutingTable[database=system, expirationTime=0, currentTime=1766226674220, routers=[], readers=[], writers=[]]

How can I fix this?

Try the bolt protocol.