About HTTP2 communication error

Hello!

I am experiencing an HTTP2 protocol error and need some assistance.

Our setup is Client - F5 LB - WAF - SERVER. The error occurs when communicating via HTTP2 between the Client and F5.

The communication paths are:

• Client <-> F5: HTTP2
• WAF <-> SERVER: HTTP1.1

When F5 is removed from the setup, there are no communication errors, and everything works with HTTP1.1.

F5 has an HTTP2 profile applied only to the Client side, and MRF is disabled.

HTTP2 errors frequently occur when refreshing the browser or using "Clear Cache and Hard Reload" in Chrome's incognito mode.

Could you help identify why these HTTP2 errors are happening and what I should check?