Cannot add remote MySQL instance due to Connection check failed
On a fresh PMM 2.6.1 installation I'm not able to add a remote MySQL instance, because of connection check failures. I've followed the procedure for running PMM server via Docker and I have set up a user on the MySQL server instance as described in Creating a MySQL User Account to Be Used with PMM. My Docker host is a fully updated CentOS 8.1 virtual machine and my MySQL server instance is on a physical machine in the same network segment. I have access from the virtual machine to the MySQL sever with the pmm's user and password. From within the container I have ping to the MySQL server instance. However, when adding new remote MySQL instance I'm getting either of the following errors:
- Connection check failed: dial tcp 192.168.0.1:3306: i/o timeout.
- Connection check failed: dial tcp 192.168.0.1:3306: connect: no route to host.
What could be the problem?