What is the operating system of your Roon Server host machine?
· Windows
What kind of device are you using to perform the login?
· Android
Where are you trying to login?
· I can't log into Roon ARC
Please try to restart your Roon Server by closing the Roon Server app in the taskbar (MacOS), task manager (Windows) or rebooting your Roon Server machine.
· No, the issue remains the same
Different device
· I am able to switch to the diffrent device
Are you still facing the issue on the different device
· No, the issue remains the same
Record the timestamp
· 12.07pm, 17 February 2026
Describe the issue
Message: Webpage not available. the webpage at roonarc://login?code=b2c0c65d-caec-43d7-bb0d-789f61503cb0 could not be loaded because: net:ERR-UNKNOWN-URL-SCHEME (Astell&Kern device) Any help much appreciated, thanks Roger
Thanks for the report. This ERR-UNKNOWN-URL-SCHEME error on Astell&Kern devices typically indicates that the device’s operating system (specifically the internal Android WebView component) is outdated or doesn’t support the specific deep-linking required to pass the login token back to the Roon ARC app.
To our knowledge, Astell&Kern has added Google Chrome to their supported apps list (Open APP Service) to help mitigate this.
Could you please try the following:
Install Google Chrome on your A&K device (if available in their store/service).
Try the login process again, ensuring the page opens in Chrome rather than the stock browser.
If installing Chrome does not resolve the issue, this is a limitation of the specific firmware on your player preventing the URL scheme hand-off. In that case, you will need to reach out to Astell&Kern support directly regarding a firmware update or workaround.
