SQL Server installer is not finding Instances (4295177)

When running the SQL Server agent installer, the agent does not find any instances.

1. The SQL Server Browser service was not running
2. SQL Server Port is blocked
3. Hostname cannot be resolved

RESOLUTION 1

Activate the SQL Server Browser service 

RESOLUTION 2

Make sure the SQL Server port is not blocked by a firewall

RESOLUTION 3

Run "ping <hostname>" and make sure that it returns correctly.

If the ping does not work, please go to the "/etc/hosts" file and add the SQL Server machine to that file. Now the ping should work and the SQL Server installer will find the instances.