How to troubleshoot Log forwarding delay between Strata Logging Service and https log receiver

SLS admins / Https log receiver admins may observe small to significant delay while receiving logs on https log receiver. For example,

• Dashboard->Forwarding Log Rate graph may be showing unusual disconnects to indicate the latency 
• admins may notice reduction in logs forwarded under Dashboard->Latency

• Prisma Access of NGFW Firewalls
• Strata Logging Service

• Intermittent TCP/SSL/TLS connection issues.
• Https log receiver may having slow speed performance issues which is causing the delay.

Here are a few steps that can help troubleshoot the issue towards resolution

1. On log forwarding profile, verify if “Test Connection” is a success. If its showing failure, there may be issues (1) network issues (2) certificate (3) intermittent connection issues of TCP/SSL/TLS.
2. Check on the SLS >Dashboard graph to see if the logs are forwarded. This will give a high level overview on the lag.
3. Ensure that SLS is receiving logs from the firewalls by checking SLS >Explore TAB. This should show logs in real time. 
4. Ensure that there are no connection errors in raw log of Https log receiver.