Bought Nokia 8 last month. I am facing issues with ringer going silent intermittently. Nokia care service center blames it on Oreo and has re-formatted my system twice., however it still persists
Want a solution to this urgently
Seems like https://community.phones.nokia.com/support/discussions/topics/7000019125 is also this issue - I have an automatic Do Not Disturb / DND rule that kicks in every night, and just spent an hour trying to work out why the phone was not ringing before finding this thread.
A reboot fixed it for me - until the next night...