Need refresh Rocket.Chat client for get new messages

Description:

Since some times, we need to refresh clients (web or desktop) to get the new messages. If we don't refresh we never receive the messages and when we send a message et stay in gray but not realy sent.
After refresh every works fine during some times (often hours).

Steps to reproduce:

1. Do nothing and after an indeterminate time you never receive new messages
2. Refresh the client
3. New messages coming

Expected behavior:

I expect not have to refresh the client for get new messages

Actual behavior:

I need to refresh the client often during a day

Server Setup Information:

• Version of Rocket.Chat Server: 5.3.4
• Operating System: CENT-OS 7
• Deployment Method: docker/swarm (official image)
• Number of Running Instances: 12
• DB Replicaset Oplog:
• NodeJS Version: 14.19.3
• MongoDB Version: 4.4.18

Client Setup Information

• Desktop App or Browser Version:
• Operating System: Linux Mac Windows

Additional context

Relevant logs:

Nothing in the log

The report names no source files, tests, or entry points; start by reproducing the stalled messaging with the stated 12-instance Docker/Swarm setup and collect client and server logs. Done means identifying and fixing the cause so messages arrive and sent messages leave the gray state without refreshing, with the behavior verified by a regression test.