Whatsapp not working on ISO

Are you using a proxy ? (Webfilter?)

yes i do, i have a firewall rule when i assign certain ports for services and WhatsApp sites and IPs as destination  it won't work but when i change it to "Any" for both services and Distention it works. 

Then go to Network Protection, Live view and watch, which ports are blocked for that IOS devices, when not using „any“

Then go to Network Protection, Live view and watch, which ports are blocked for that IOS devices, when not using „any“

source port is keeps changing, for distention its 5222 or 5223.

Hello,

I assume you are using Webfilter in transparent mode. This will grab ports 80 and 443, but not the rest which is needed for IOS to communicate with WhatsApp servers.

Could you try this instead of fw rule with "any"
First define Apple ports under "service definitions" like this:

Then define the rule under "Network Protection/Firewall"

Putting "Any" here as destination is for testing purposes only. I know you want to refine this, but let's do that later.

Please report back, if this is working.

Hi, i did what you said and it doesn't work

Can you please show us your logs?

sorry i can not provide this info 

You could give us redacted output ar screenshots with obfuscated IPs.

Otherwise I am not sure, what you tested and if this was the right way it was done.