Cannot connect on mobile network

I can connect from a Wi-Fi network, but I cannot connect from a mobile network.
Is it due to iOS version upgrade?
iOS13.5.1
Purei application 7.4
Purei9 40.18
I can connect from a Wi-Fi network, but I cannot connect from a mobile network.
Is it due to iOS version upgrade?
iOS13.5.1
Purei application 7.4
Purei9 40.18
Comments
Did it work for you before the iOS upgrade?
If yes: Call Apple
If no: I have no idea
Thank you.
Until May 20, I was able to operate Purei 9 from the mobile network.
My wife's iPhone 11 Pro, which uses another company's mobile network, also does not connect.
Both iPhones have iOS 13.5 or above.
Also, some cleanings done after May 21st are not displayed in the app history.
By the way, iOS 13.5 was released on May 21.
Thank you for your reply - it looks like the iOS-update has broken something here.
From my "Android" point of view it looks like Apple has introduced some kind of new "firewall rules" with iOS 13.5 - as mentioned before: Since the only thing changed is iOS please do open a case with Apple.
Thank you
I did a vacuum cleaner reset and the problem went away.
However, I feel that resetting is a daily task.
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