Roon Core crashes everytime on startup

Roon Core Machine

Intel NUC i5 1.8GHz 8GB RAM
Windows 10

Networking Gear & Setup Details

Wired network throughout
HP ProCurve switch

Connected Audio Devices

Meridian Audio (MS200, 818v3)

Number of Tracks in Library

c. 30,000 tracks

Description of Issue

Roon has been very stable until recently, and now it crashes every time that I try to start the Core. I have re-installed Windows, and re-installed Roon and restored from a recent backup. However, the same problem persists.

Event Viewer shows the same error each time:

Log Name: Application
Source: Application Error
Date: 17/06/2022 18:50:03
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: DESKTOP-INMMN7G
Description:
Faulting application name: Roon.exe, version: 1.0.0.0, time stamp: 0x62a332af
Faulting module name: ucrtbase_clr0400.dll, version: 14.10.25028.0, time stamp: 0x5bac17b7
Exception code: 0xc00000fd
Fault offset: 0x000000000000f758
Faulting process ID: 0x1b60
Faulting application start time: 0x01d882728b31d224
Faulting application path: C:\Users\roon_\AppData\Local\Roon\Application\Roon.exe
Faulting module path: C:\WINDOWS\SYSTEM32\ucrtbase_clr0400.dll
Report ID: f686f779-721d-485a-bc51-41b75fc766af
Faulting package full name:
Faulting package-relative application ID:
Event Xml:



’ 1000
’ 0
’ 2
’ 100
’ 0
’ 0x80000000000000

’ 188


’ Application
’ DESKTOP-INMMN7G



’ Roon.exe
’ 1.0.0.0
’ 62a332af
’ ucrtbase_clr0400.dll
’ 14.10.25028.0
’ 5bac17b7
’ c00000fd
’ 000000000000f758
’ 1b60
’ 01d882728b31d224
’ C:\Users\roon_\AppData\Local\Roon\Application\Roon.exe
’ C:\WINDOWS\SYSTEM32\ucrtbase_clr0400.dll
’ f686f779-721d-485a-bc51-41b75fc766af





There was a windows 10 update overnight I believe and it seems this has caused some issues with other users so far.
Firewall rules changed at all?

Unfortunately I can’t paste the whole of the Error Event, because many of the lines start with a less-than symbol, which appears to hide the text when pasted into a message here.

Please could someone in #support contact me, it’s frustrating being without music!

I will check the firewall settings if I can, but when I opened the new installation of Roon for the first time, Windows asked for firewall permission for both Roon and RAAT

This also possibly?

Particularly Blackjack post.

I had seen that post from Blackjack, and tried enabling NET Framework 3.5, but that didn’t make any difference.

Re the firewall settings - both Roon and RAAT are set to ‘private’ but not ‘public’. Does it need to be set to ‘public’ too?

If you have your network set to public zone then yes it does. If it on a private zone it doesn’t matter.

Have a look at the network settings in Windows and it should tell you what zone each interface is on

1 Like

Thanks - I have just tried changing Roon.exe & RAAT to both ‘private’ and ‘public’, but Roon crashed on re-opening, so that firewall setting didn’t make any difference.

I didn’t think it would be firewall related but worth checking.
Usually if firewall related it just doesn’t work rather than crashes

1 Like

Let’s see if we can get some assistance for you from @support

Some assistance from support would be much appreciated, thank you AceRimmer

Hi @Ian_Grant1,

I’m sorry to hear that this issue has been interfering with your listening. The team will more thoroughly review diagnostic logs from the Core device to try to pin down the issue, but a first glance through shows several network connectivity issues around the time of a crash.

To rule out a firewall: You can read detailed instructions for adding RAAT Server and Roon as exceptions to your Windows firewall in this article. I also recommend checking firewall settings on any Remotes you might have in use here.

Another immediate troubleshooting step is to set aside the Roon database (more thorough than an uninstall/reinstall):

  • Create a Backup of your current database
  • Exit out of Roon
  • Navigate to your Roon Database Location
  • Find the folder that says “Roon”
  • Rename the “Roon” folder to “Roon_old”
  • Reinstall the Roon App from our Downloads Page to generate a new Roon folder
  • Verify if the issue persists on a fresh database before restoring the backup

Please let me know the results. We’ll report back here if we find any direct clues in the logs. Thank you for your patience.

Hi Connor,

thank you for your reply. I have done the following:

  • checked firewall settings (both Roon & RAATserver were set as exceptions)
  • changed Roon database folder name to Roon_Old
  • downloaded & reinstalled the Roon app

The Roon app started OK, but as I was entering my login details, it crashed, with the same error as before in the Windows event logs. Here’s a copy of the error event properties:

Faulting application name: Roon.exe, version: 1.0.0.0, time stamp: 0x62a332af
Faulting module name: ucrtbase_clr0400.dll, version: 14.10.25028.0, time stamp: 0x5bac17b7
Exception code: 0xc00000fd
Fault offset: 0x000000000000f758
Faulting process ID: 0xe2c
Faulting application start time: 0x01d8897237f5c74c
Faulting application path: C:\Users\roon_\AppData\Local\Roon\Application\Roon.exe
Faulting module path: C:\WINDOWS\SYSTEM32\ucrtbase_clr0400.dll
Report ID: cd623e0d-f5d8-4ae7-848e-7cad29fff3a7
Faulting package full name:
Faulting package-relative application ID:

Can you give me any further assistance please? I don’t know what UCRTBASE_CLR0400.DLL is or how Roon should interact with it. Is this a Roon problem or a Windows problem?

Thanks,

Ian

Hi @Ian_Grant1,

The errors appear to be related to your .NET framework; it’s possible a file is corrupted.

Can you try to reinstall .NET Runtime and see if that helps? You can uninstall from Control Panel and then reinstall from the Microsoft website: Download .NET 6.0 (Linux, macOS, and Windows).

Please let me know if that helps.

Do you encounter this error when minimizing or maximizing the window at all? You mentioned logging in triggered the crash - do you remember the last action you performed prior to the crash?

Thank you again for working with us to chase this down.

Roon Core Machine

Intel NUC i5 1.8GHz 8GB RAM
Windows 10

Networking Gear & Setup Details

Wired network throughout
HP ProCurve switch

Connected Audio Devices

Meridian Audio (MS200, 818v3)

Number of Tracks in Library

c. 30,000 tracks

Description of Issue

Roon has been stable for years, and whilst recent problems (in past couple of weeks) of audio stopping appear to have been resolved by the latest software update, Roon Core now repeatedly crashes. It now crashes within a few moments of opening the software.

Event Viewer error log shows the following on each occasion:

Log Name: Application
Source: Application Error
Date: 15/06/2022 08:32:16
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: DESKTOP-INMMN7G
Description:
Faulting application name: Roon.exe, version: 1.0.0.0, time stamp: 0x62a332af
Faulting module name: ucrtbase_clr0400.dll, version: 14.10.25028.0, time stamp: 0x5bac17b7
Exception code: 0xc00000fd
Fault offset: 0x000000000007cdb9
Faulting process ID: 0x1f54
Faulting application start time: 0x01d87f6dfb523cc2
Faulting application path: C:\Users\roon_\AppData\Local\Roon\Application\Roon.exe
Faulting module path: C:\WINDOWS\SYSTEM32\ucrtbase_clr0400.dll
Report ID: b3916b67-9dcc-4e0a-a674-ebfe54bfc770
Faulting package full name:
Faulting package-relative application ID:
Event Xml:



1000
0
2
100
0
0x80000000000000

67217


Application
DESKTOP-INMMN7G



Roon.exe
1.0.0.0
62a332af
ucrtbase_clr0400.dll
14.10.25028.0
5bac17b7
c00000fd
000000000007cdb9
1f54
01d87f6dfb523cc2
C:\Users\roon_\AppData\Local\Roon\Application\Roon.exe
C:\WINDOWS\SYSTEM32\ucrtbase_clr0400.dll
b3916b67-9dcc-4e0a-a674-ebfe54bfc770