Inability to connect to Roon Core with app today (ref#8K4NXK)

Support
1

What’s happening?

· My Roon software won't start up

How can we help?

· I am experiencing freezes or crashes

Other options

· My Roon software won't start up

Describe the issue

Everything was fine yesterday And now I don’t Connect to Roon core White the app

Describe your network setup

Ethernet connection for my Intel Nuc White Roon Rock only

2

What’s happening?

· I'm having trouble connecting to Roon

What type of connection issue?

· Something else

How can we help?

· None of the above

Other options

· My Roon software won't start up

Describe the issue

I can’t Connect to Roon

Describe your network setup

Intel Nuc , no switch

3
  1. The screen shot is showing that the server has started up.
  2. Not being able to see the IP address, I can’t tell if it is actually reaching your DHCP server or not. What are the first 2 number groups, 192.168 or 10.0 would be the most common private IP range.
  3. Have you tried entering that IP address in your browser and see if you can connect to the ROCK and bring up the web page.
  4. Double Check that the IP range of the client computer shares the first 3 number groups as the server. Like my server is 192.168.1.5 and the client is 192.168.1.99. The fact that both start with 192.168.1 means they are on the same subnet. If there are differences in the first 3 number groups that means that the server and client are on different subnets, which won’t work.
4

Hello,
I try to connect whith my mac on my server to see the folder, and everything it’s ok
The app Roon on my iphone won’t connect ?
The ip adress of Roon Rock is 192.168

5

Hi Vito,

I’m a fellow user, not official support, just trying to help out. Then, I would take a look at point #4 above. Check the IP address of the iPhone vs the server. Again, the first 3 number groups need to be the same. Sometimes if there is a router update, it will split Wifi and wired into separate networks.

6

If you don’t know how to do that, there is a great little program called Fing, which I think Apple Store has ‎Fing - Network Scanner on the App Store. I think the basic version is free.

7

Hi Rugby,
Thank you for your help,
I go to Find app and the ip adress of my iphone and roon is the same begin, 192.168.0.xx
My install date is one mont and yesterday was ok

8

Was this following yesterdays update?

If so, reboot your router and any other network gear. Then reboot your Roon Server, Roon clients etc.

9

Hello @Vito_Leone,

Thank you for reaching out to Roon Support.

After enabling diagnostics on your account, we identified that your environment appears to have been affected by a ransomware virus known as WannaCry.

image

The system seems to have recovered after a reboot, but there may still be issues with your database or music files.

Please follow the steps shared by @noris in the following thread:
:link: Roon unable to play to Bluesound grouped devices

Additionally, could you let us know if your ROCK (Roon Optimized Core Kit) is exposed to the internet in any way (e.g., port forwarding or DMZ configuration)?

We’re here to help and will continue to assist based on your findings.

Kind regards,
Vadim

10

I restart my modem and everything.
Now the Roon app open but nothing device find ?
I restart my Bluesound node and nothing .
The Roon app is now open but nothing connecting with my device ???

11

I see in the folder of my Roon Core this file Roonserver…want to cry :rage:
Yes i open port for Roon Arc on my modem

12

Hello,
is an attack all file of my library was renomed in .want.to.cry
a ■■■■ virus :rage:

13

Hi @Vito_Leone,

We highly recommend avoiding the use of DMZ under any circumstances. Enabling the “DMZ” setting on your router or firewall effectively places the selected device directly on the internet without any network protection. This bypasses all firewall rules, exposing every port on the machine — not just the one needed for Roon ARC.

Instead of opening a single, necessary port, using DMZ creates a massive attack surface that makes your system extremely vulnerable to malicious access or exploitation. This poses a significant security risk, especially for devices containing personal data or connected to your broader home network.

For Roon ARC to work securely, it’s far safer to set up port forwarding for the specific port ARC requires (usually 55000–55002), while keeping your firewall protections intact.

We did also notice that your ROCK is using a rather outdated version of Roon - are you able to access the webUI of your ROCK? Here’s more info on this:

You can perform a RoonOS reinsatll that should get you on the latest version of Roon Server.

14

I just finished a new and fresh instal.
Always is fine, but how to protect me of they attack ?
I just open the port 55002 on my modem for the ip adress of my Roon Rock

15

@benjamin why do you think the user DMZ’d his network?

They mention before you posted the above quoted part of their message.

@vadim mentioned DMZ! Can you be certain??

There are other ways for ransomeware to enter a users network.

This particular one, wannacry stems back to 2017. Mainly affecting Windows computers IIRC with exploits in their SP’s.

Exploiting SMB protocol IIRC.

My memory is a touch hazy on this now though. I was more geeky 20 years ago :face_with_peeking_eye:.

And before others chime in about port forwarding safety concerns, when setup correctly it is safe.

A group of us have discussed this and for some users who may not have a good understanding of networks and setting up routers, port forwarding should be discouraged by Roon in favour of Tailscale. Just my view.

I believe @danny was advised not to go down this avenue when Arc was being developed.

This user is not the only one who’s facing or faced a similar instance. I’ll leave it at that for now.

1 Like
16

Thank you !
But How to configure Tailscape in my modem for Roon Arc ?

17
18

Hi,
I just finished Install Tailscape And configuration And everything is fine !
Now I Hope i´m protect
Thanks a lot everybody !

1 Like
19

Hello @Vito_Leone,

We would reccomend you to scan your all of your local network devices and try to find any trace of the virus. If you mounted the Roon Core storage to one of your Windows PC pay extra attention to it.

1 Like
20

As I have discussed elsewhere

Wannacry’s avenue was Microsoft Windows use of externally open TCP port 445

Unless the OP has an old XP or Vista machine it’s going to be difficult to trace the route of this.

As Roon’s support sort of ends here, rightly so, it’d be interesting for me and maybe others to know what network equipment @Vito_Leone is using and also what other computers they use.

Also, @Vito_Leone have you recently purchased or been given any USB drives?

1 Like