Phone does not make any notification sounds

[iisai]

In the last 24 hours, my phone (Galaxy S21 5G) has stopped making notification sounds.  I get the notifications, and it vibrates briefly, but there are no sounds with the notification.  I've checked all the obvious things including: 

• Verified the phone is not on mute or vibrate, and the volume is up to max on Ringtone, Media, Notifications, and System
• Checked that there are no App settings that mute or lower the volume
• Do Not Disturb is not on
• Separate app sound is off
• I'm updated to the latest Android version (Software version = G991U1UES8EWG3)
• I've restarted the phone
• I've reset all the Settings to default
• I've cleared the cache and data for the app I need most (Opsgenie)
• The speakers on the phone work (media sounds play)

Another odd thing is that when I go to Settings > Sounds and vibration > Notifications where you can select the sound, nothing plays when I select different sounds. It does work on Settings > Sounds and Vibrations > Ringtone.  I've restarted the phone in Safe Mode, and this behavior is unchanged.

When I go to Volume settings, and adjust the volume on the different types of sound, Ringtone and Media always play when the volume slider is adjusted.  Notifications will play once, if I change it's volume after Ringtone or Media, but then stop for all future adjustments until I adjust Ringtone or Media again.  System never makes any sound.

I'm specifically concerned about the app Opsgenie, since I need to hear on-call alerts for work, but none of the app notifications are making any sounds.

[bill-e]

it's likely a setting. unless you've done a lot of settings customizations, the easiest thing to try is Settings->General Management->Reset->Reset all settings
which won't delete any data, just put the settings in the Factory default configuration.

[iisai]

For reference, this was the original question: https://us.community.samsung.com/t5/Galaxy-S21/Phone-does-not-make-any-notification-sounds/td-p/2652...

[Members_mesSZvy]

Same Problem - SOLVED - turn off Bluetooth - There may be a connected device preventing audio - Unpair the device.  Even something simple such as a hearing aid.

[iisai]

Doesnt work for me, unfortunately. Tried resetting my Bluetooth entirely even.

[sniperi311]

It has to do with YouTube and Google not wanting to work together app wise

[lukky]

Just started having the same issue. No sound for my notification on some apps. I see the notification but any noise associated with them I no longer get.

[Summest]

Wow.  Such a peculiar problem.  Any luck @iisai ?

[Members_JeKnzeL]

Same exact issue started a week ago on my S21. I went through all of the same steps as the OP before looking on-line and again after finding this thread. Bluetooth is turned off and I have reset my network connections. 

This is so aggravating as I miss important text messages.  

[farexynex]

i Have the same problem when i connected my samsung watch to the phone the notification sound stopped working , How can i fix that issue? the network rest didn't fix the issue

[userKJbvDYxWjl]

I have the same issue, but when connected to a bluetooth device - all works - thry the device....