ARDUINO UNO R4 Wifi project fails when connection is lost

Hello all,

I have a project running for several months without any issues.
I use the IOT cloud to read and write some variables.
sometimes my arduino loses connection with internet (due to unreliable power grid) and
my project runs on a solar powered battery.
Before if the internet connection was lost i just had to reset my arduino to regain connetion but my project kept working.
since a while if the internet connetion is lost the project stil works but not as it should be.
for example if i push a button a gate should open until the end reed switch is reached. when the connetion is lost now if you push the button it only works like 10% of the time and if it works the gate open but doesn't stop at the end stop.

can someone give me any tips?
thanks in advance!

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