07-31-2023 09:37 PM - edited 07-31-2023 10:41 PM
Recently iPhone users only facing in WhatsApp "connecting" message, User could not send a message and make a call
on corporate wireless network But, working in mobile network.
It was working before, day by day users facing this issue is increasing. Still WhatsApp working for some of the iPhone users on same wireless network.
Tried IOS software update and WhatsApp update as well but no luck.
Same is working for all andriod users even on old version of WhatsApp.
in firewall end, WhatsApp traffic is cannot recognized as whatsapp-base for iphone. it shows as unknown-tcp.
No recent changes in our firewall end.
08-02-2023 12:38 AM
Exactly the same problem on our side.
I opened a case.
08-02-2023 02:40 AM
Yeah we are experiencing the exact same issue. Workaround allow unknown-tcp over 5222. Anyone opened a TAC case yet?
08-02-2023 02:46 AM
Exactly the workaround we use. Just waiting for my local reseller to know what to do.
08-02-2023 07:16 AM
This issue is being heavily reported and will undoubtedly be corrected in an upcoming signature update. Unfortunately like any other application, PAN has to play catch-up on the signatures when the traffic is modified to no longer match existing signature patterns.
08-02-2023 08:33 PM
Should this reported to PAN to get prompt signature update? What is their approach on this type of issue.@MarketMaker is already opened a case with PAN for same issue.
This issue was started 2weeks back or us. But why PAN still catch this issue.
08-08-2023 12:23 AM
Did you get any assistance from TAC?
08-08-2023 12:48 AM
No answer at the moment.
08-16-2023 06:41 AM
Hi Is there any update on this ? I'm also facing same issue.
08-16-2023 07:25 PM
WhatsApp new update 23.16.0 fixed this issue. people can text and call now.
08-22-2023 01:29 AM
We have updated to Whatsapp version 23.16.0 and still not working
08-22-2023 05:46 AM
Hello,
When WhatsApp traffic on iPhone users is unrecognized by the Palo Alto (PA) firewall and displays as "unknown-tcp," despite no recent firewall changes, consider the following troubleshooting steps:
Update Application Definitions: Ensure the PA firewall's app definitions are current.
Traffic Analysis: Capture and analyze "unknown-tcp" samples to identify potential WhatsApp patterns.
Custom Application Signature: Create a signature in PA for the unrecognized WhatsApp traffic.
Review Security Profiles: Check for SSL decryption policies affecting iPhone or WhatsApp traffic.
Whitelisting: Temporarily allow 'unknown-tcp' traffic for iPhone users identified as WhatsApp.
Contact Palo Alto Support: Report the unrecognized traffic issue.
Inspect Network Devices: Ensure no devices like Load Balancers are altering traffic.
Reach Out to WhatsApp: Inform them of the issue affecting iPhone users.
Remember, setting up a controlled test environment can help isolate the issue without affecting all users.
08-24-2023 06:11 AM
Hi friends,
Has anyone opened TAC case regarding this problem and got an answer? It seems to be a global issue.
08-28-2023 01:20 AM
I gonna have a call with Palo support for my open case. I'll keep you informed.
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