# Roon app unable to control volume after power outage (ref#TMWNAS) **URL:** \ **Category:** Support\ **Tags:** rctt\_-09-1\ **Created:** [May 31, 2026, 4:53am UTC](https://community.roonlabs.com/t/roon-app-unable-to-control-volume-after-power-outage-ref-tmwnas/321038 "2026-05-31T04:53:01Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![Suedkiez](https://community.roonlabs.com/user_avatar/community.roonlabs.com/suedkiez/32/107321_2.png) [@Suedkiez](https://community.roonlabs.com/u/Suedkiez)\ **Post date:** [May 31, 2026, 11:17am UTC](https://community.roonlabs.com/t/roon-app-unable-to-control-volume-after-power-outage-ref-tmwnas/321038/3 "2026-05-31T11:17:43Z")
Possibly related to what I and others reported here: > [@\[Investigation Ticket In\] B1660 Denon Home 150 shows as „fixed volume“ in the zone although device setup is „device volume“](https://community.roonlabs.com/t/investigation-ticket-in-b1660-denon-home-150-shows-as-fixed-volume-in-the-zone-although-device-setup-is-device-volume/320683): > > Edit: Not a biggie, see additional edit below the screenshots. However, can potentially lead to unnecessary support cases if this is a more general issue and not just me. Initial state I have used the Denon (Heos) for a year and it supports device volume (Roon Ready). I haven’t changed anything about the device in the Heos app and device volume worked until recently. As far as I can tell it must have changed either with B1160/1659 (recently, anyway) or my RoonOS 3.0 migration. I unplugged and… --- _[View the full topic](https://community.roonlabs.com/t/roon-app-unable-to-control-volume-after-power-outage-ref-tmwnas/321038)._