Problem to send text message over WIFI ( just Iphone)

[Gaetano]

Good morning.

Last week several users that have iPhone devices tell us that they are unable to send text message when are connect to our WIFI ( guest or internal SSID), but when they disconnect all message send/arrived automatically.

Any guest what happen here?? all firmware updates are done,  just happen with iPhone not with android devices.

Thanks.

[Inderdeep]

@Gaetano  For your ref 

https://community.meraki.com/t5/Wireless/iPhone-texts-not-sending/td-p/31913

[cmr]

Are they definitely text messages and not iMessages?