Installing errata from satellite web UI (Sat6.1.7)

When installing errata either from bulk actions or for a single content host we cannot get the action to complete as we always receive a host did not respond within 20 seconds message.

There appear to be a total of 15 poll_attempts when looking at the dynflow console for pulp_tasks and non failed, then there is a runtime error with the host did not respond.

This happens even though gofer and katello-agent are installed on the systems.

We are running over a very limited bandwidth network, with 3,700 content hosts, and 13 capsules out there as well.

Is there any way to debug why this is occurring?