@luisda 

Welcome to the community.

Please help me check the following information as well:

1. Would all the mobile clients have the same issue with WhatsApp when on Deco's network?

2. Please confirm there are no parental control settings for these devices.

3. Would WhatsApp work well if the device is on a 4G mobile network?

4. "I go to whatsapp I get the "connecting" message on my iOS device for about 50 seconds and I cannot send or receive messages", can I have a video clip of this?

(I have provided my email address via private message and you could send the video to my email.)

Thank you very much.

Best regards.

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