@Amos4354cohen 

Hi, nice to see you again.

It would be highly appreciated if you could update on one post since I might need to check all your posts on different threads in case I missed some important information.

Some users posted on the previous post that he installed another APP- GBWhatsApp which seemed like a customized mod of the original WhatsApp if you are interested.

For your current issue, I would like to forward your case to the senior engineers for further help.

And you could also find my email address in the private message.

But could you please help me get more details about your issue:

Could you please help me run a simple test:

1. power off the satellite units, only leave the main Deco.

2. enable the guest Wi-Fi for 5ghz only, connect your iPhone or Android devices to the guest Wi-Fi.

3. test whether you would still get the same issue on WhatsApp.

Thank you very much.