Core stuck at Initializing [Resolved - Firewall settings]

I’m using version 1.3 (build 247) stable (64bit) on my desktop PC, but my android phone Xperia XZ premium android version 7.1.1 is unable to connect to my desktop it’s either stuck at Initializing or briefly saying failed to connect. I have made sure it’s not my firewall that is the issue by allowing both the RAAT server and Roon in my eset firewall settings. I am using fidelizer with Roon however I don’t think that’s the issue.

My desktop is a wired connection using powerline plugs to my SKY router (model ER110 - firmware version 2.04.2076.R) and my phone is using wifi.

Desktop system information:

[System Summary]

Item Value
OS Name Microsoft Windows 10 Pro
Version 10.0.15063 Build 15063
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name DESKTOP-VK518EF
System Manufacturer BIOSTAR Group
System Model X370GTN
System Type x64-based PC
System SKU None
Processor AMD Ryzen 5 1600X Six-Core Processor, 3600 Mhz, 6 Core(s), 12 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. 5.12, 23/06/2017
SMBIOS Version 3.0
Embedded Controller Version 255.255
BaseBoard Manufacturer BIOSTAR Group
BaseBoard Model Not Available
BaseBoard Name Base Board
Platform Role Desktop
Secure Boot State Off
PCR7 Configuration Elevation Required to View
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume3
Locale United Kingdom
Hardware Abstraction Layer Version = “10.0.15063.502”
User Name DESKTOP-VK518EF\James
Time Zone GMT Daylight Time
Installed Physical Memory (RAM) 16.0 GB
Total Physical Memory 16.0 GB
Available Physical Memory 10.8 GB
Total Virtual Memory 20.2 GB
Available Virtual Memory 13.8 GB
Page File Space 4.25 GB
Page File C:\pagefile.sys
Device Encryption Support Elevation Required to View
Hyper-V - VM Monitor Mode Extensions Yes
Hyper-V - Second Level Address Translation Extensions Yes
Hyper-V - Virtualization Enabled in Firmware No
Hyper-V - Data Execution Protection Yes

Turn off your firewall completely and see if that works first

Hi @James_Lock ---- Thank you for the report and sharing your feedback with us, both are appreciated!

Moving forward, besides checking firewalls I would also recommend giving the following a shot:

  • Reinstalling the remote application on the Android device.

  • If you’re making use of any antivirus applications, I would disable those as well.

  • Power cycling any networking hardware.

  • Shut down your Core…

  • Open Roon on your Remote
    (Tip: If you are using a phone, make sure you keep it awake)

  • Roon should be on the “Searching For Core” screen

  • Start up the Core

  • Start up your Core…

  • Start up your Core

  • Open Roon on your Remote
    (Tip: If you are using a phone, make sure you keep it awake)

  • Kill the Roon app
    (Tip: If you are using Android please go to Settings > Apps > Roon > Force Stop)

  • Restart Roon on on your Remote


I solved the issue, it appears the firewall had changed settings without myself realising and was blocking roon by default.

My mistake.

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