I only started having this problem when I found out my neighbors were hacking in to my wifi. Had to have updated security put on for all my devices! So many scammers out there buying different tech items so they can jump on your wifi. They can buy all kinds of stuff to scam you but don’t want to pay
the buck for their own service. So far I am no longer seeing the question mark. I would recommend you check and update all your security on all your devices. I hate scammers I tell them to pay for their own SH—! Hope this helps!!!