Whatsapp traffic not always recognized properly

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Whatsapp traffic not always recognized properly

L4 Transporter

Hi All,


it seems that in the last days the whatsapp application is not always correctly recognized.

From logs we can see that some connections are blocked.

We don't think is due to the last dynamic updates, because we reverted it to precedent version does not solve the issue.

We have look into the community but no one suggestions was found.

Have you ever seen this behavior before?


Best Regards



L5 Sessionator

Ha, is one of them Luca's case? 😄



We have the same problems, the whatsapp application isn't recognised anymore.


In some cases whatsapp works and travels over tcp/5222 in the most cases it fails and will be denied by the palo and it will travel over tcp/443 and marked as "unknown-tcp"


What is the status of the TAC cases?


Best Regards,




I can see this item is being worked on but by all means, please don't expect TAC-related answers here - ask TAC for TAC stuff 🙂 as far as I can tell, this update should be out soon... but can't (read: won't) predict times - I know my colleagues are working hard on all the issues they have listed and they are prioritizing accordingly 🙂




Hi @Lucky,


Thanks a lot for your response.

I know here there are NOT "official response" from TAC, so thanks again for your patie.

In conclusion as I understand seems PA TAC working on this one and sure there is something changed on Whatsapp side.


For me this information it's all I need.








no problem. I checked it today for other case and as far as I can tell, fix is at QA stage at the moment. Hopefully, given number of inquiries about this, it will be published soon.



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