In one of the Palo alto firewall Whatsapp traffic is detected as “unknown-tcp” for destination port 5222.
Only mobile phone users Whatsapp traffic is detected as “unknown-tcp” & Whatsapp web traffic is allowed for destination port 443 & 80.
On the other PA firewall Whatsapp traffic is detected as “whatsapp-base” for destination port 5222.
Downloaded & installed the latest applications and threats content updates but no luck.
Kindly suggest the cause of the problem.
Are both devices the same hardware and PAN-OS ?
Did you verify if no APP-IDs have been disabled on one firewall?
Can you verify if (via 'show session info') both devices have the same session setup settings?
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