Huawei mate 10 per, constant message?

I get constantly on my Huawei mate 10 per the message that even when the WLAN is switched off, looking for networks. Whether I press "OK" or "cancel", the message comes again and again and in short intervals, which bothers me neat. Turning off the settings of the function brings nothing, the message still comes back. Restart unfortunately no success. What can I do against it?

Try to clear the cache. Simply turn off the power, then press and hold the power and volume buttons for a while and then press something like wipe cache (different from device to device). Otherwise, you can also google how to clear the cache on your device.

Thanks, I'll try

I have now cleared the cache on the phone itself, 600mb was made free, I'll see if that's enough

I would not do it like that. So apps like cm cleaner often do not work properly