I would definitly start with a support case. That way they can advise if there are fixes for the condition you are facing since you are on slightly older code. They are up to 7.1.16 on the train you are currently on. You can read through the release notes but I think a support case would be quicker.
I have also faced same issue on two of my gateways. Both are having different models but were running on same code (9.0.3-h3). I had logged support case and TAC said it was due to bug (Bug ID PAN-133883). This bug is addressed in 9.0.6.
I would suggest to open support case and check if you're also hitting same bug.
Hope it helps!
Click Accept as Solution to acknowledge that the answer to your question has been provided.
The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!
These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!
The LIVEcommunity thanks you for your participation!