Hey guys,
I reaced my destination, sun is rising, I can see the sea 
Looks like a good start of my holidays!
I am so happy that the Bluetooth issue was finally solved for you. Thanks’ to @Piotr_Pekala 
@Daiyama,
You can still connect to WiFi but you have to do it as I intended.
On this page you can connet to your router.
See my video here
Best DrCWO
Thanks, found the instruction about this in the installation guide.
So don’t worry about us and enjoy your holiday. 
Control Denon AV Receiver with Nuimo
My aim is to control the volume of my Denon AV Receiver X4700H with the Nuimo.
First I installed the Roon extension (see below) as a docker hub on my Synology DS918+ and configured it within Roon. As the result I can control the volume of the receiver with the Roon user interface (client). Turning the Nuimo shows the volume on the Nuimo’s display but does not change the volume of the receiver. Start, stop, skip on the Nuimo work as expected.
These are the components:
Roon Extension “roon-extension-denon”: GitHub - jcharr1/roon-extension-denon: Roon Volume Control Extension to control Denon & Marantz receivers
(Branch from Roon user Jason Charrier @jcharr1; related forum post)
rooExtend 2.2.1 beta 3
rooNuimo 1.1.4
Roon Core on ROCK 1.8 build 913
Any ideas to make this work?
Maybe it is about the sequence the two extensions are working with/on the Roon core …
Thanks in advance 
Henrik
rooExtend 2.2.1 beta 3 really helped with the Bluetooth range for me. I use a BT dongel and now it covers most of my apartment so I can use the Numio for several zones.
Likewise. 10m range through a substantial internal wall, using TP-Link dongle.
In the meantime I had some conversations with @DrCWO and @Klaus_Engel about my Denon volume issue.
The assumption is, that it is related to the fact that volume values are deliverd as floating point values and not as integers from rooExtend to Roon. Investigations on that will continue after DrCWO’s vacations.
Indeed we have a newer version of the code that fixes the rounding issue when using rooNuimo in combination with certain other extensions. We’ll provide an update soon!
Thanks Klaus; Great news. In joyful expectation 
I fixed it but the internet in the holiday hotel is down at the moment.
Stay tuned…
Best DrCWO
So much for a holiday 
@Henrik_Lampe I have all three controllers. Space Mouse, Surface Dial, and Nuimo. I don’t have a Denon so I can’t speak to that. However, the Space Mouse and Surface Dial both have a feature setting that allows one to control the volume of my active speakers (KEF LS50 II) or other connected Roon Endpoints that support volume, even when not playing Roon. I asked @DrCWO and he mentioned this feature is coming to the Nuimo. I think this might help you too if you can get your Denon working however, you might need a Roon Ready receiver as Roon Tested sometimes means no volume control.
"Change volume at playback only" (Yes/No) set to No and you can control your volume anytime with the controller. Just not the Nuimo… yet.
While the 2.2.1 B3 range is MUCH improved. I wanted to see if I could extend the range even more with a better dongle. I found this $22 “StarTech USB to Bluetooth Verison 4.0 Adapter - 50M Class 1” on Amazon.com
I’m very pleased to report that this now covers most of my house! Not even close to the 50 Meters advertised, but better than the TP-Link or Pluggable dongles that I previously tried. In order of range from my experience YMMV:
For anyone with longer range needs, the Startech is the one to get.
Great research Henry.
That’s a heck of an extension
Can’t wait for the next couple of updates
It seems there is a competition for the greatest distance that can be reached. 
My input to this discussion is some additional firmware
for the rtl8761b chipset in the latest v2.2.1. Beta 5
It should work with this adapter from ZEXMTE which is a 100m USB BT dongle 
I bought it end of January but it did not come with the blue antenna but a black one. Maybe I already got the BT 5.1 version. I can’t tell at the moment as I am not at home. I tested with the firmware I added now. If you like test it and report how much of the advertised 100m can be achieved in practice.
Best DrCWO
With all of these transmitters the range could be made to many 100’s of meters but the issue of the transmiitter in the bt device dial/mouse/Nuimo etc is the final deciding factor … which ever is the worst will be the limitation.
Version 2.2.1 beta 5 fixes the Denon volume control problem for me!
The volume levels are displayed in integer numbers now (on RoPieee Display).
Big thanks to @DrCWO and @Klaus_Engel 
Thank you to help us improve rooExtend 
Downloading now and will update all my rooextend devices
Dr CWO, thank you. My Nuimo has arrived today, vey nice it is too.
I already have your Roodial working on a Pi Zero W but i cannot seem to see the new Pi4 (2gb) i have got for the Nuimo in Roon. The Nuimo itself only shows the bluetooth symbol. I have tried removing the (perforated metal) case from the pi but this made no difference.
Reading the thread (its a long one so i may have missed something!) it appears the bluetooth connection between the Pi4 and Nuimo is automatic? I have tried with them inches away from one another to no avail.
Any thoughts?
I have re-flashed the sd card and that seems to have sorted it out. Apologies.