ctrld doesn't come up after reboot (windows)

[xopez]

Hey,

I have found something I don't really know how to debug.
Sometimes after a fast start (shutdown and boot, not a reboot) of Windows ctrld seems to be running as service, but the local DNS servers in the interface arent changed and still on automatic mode. Thats why ctrld doesn't catch the dns requests on the device.
First I thought it is a problem of cloud gaming service i was using, but on a local 2 weeks old Windows 11 (25H2 Build 26200.7462) it also happens.

A thought: ctrld is ready before the interface is loaded through windows.
I will set debug mode so hopefully something is catched

TOML:

[service]
  client_id_preference = 'mac'

[listener]
  [listener.0]
    ip = '127.0.0.1'
    port = 53

    [listener.0.policy]
      networks = [
        { 'network.0' = [
            'upstream.0'
        ] }
      ]

[network]
  [network.0]
    cidrs = ['0.0.0.0/0', '::/0']

[upstream]
  [upstream.0]
    type = 'doh3'
    endpoint = 'https://dns.controld.com/ID'
    timeout = 2500
    send_client_info = false

[xopez]

log.txt
Logfile with debug attached.
Will delete the ID and create a new one so it will become invalid. I don't want to touch the logfile

[cuonglm]

Thanks for reporting, we will take a look.

[matrix8967]

Strange...I've not seen this before. I'll try to provoke my windows machine into reproducing this.

[matrix8967]

@xopez Can you open up Powershell as Admin and run the following to check the status of the ctrld service? I'm wondering if some other process is standing in the way of ctrld starting.

Get-WmiObject -Query "SELECT * FROM Win32_Service WHERE Name = 'ctrld'" | Format-List *

[xopez]

Sure:

PS C:\WINDOWS\system32> Get-WmiObject -Query "SELECT * FROM Win32_Service WHERE Name = 'ctrld'" | Format-List *


PSComputerName          : DESKTOP-58VAUVH
Name                    : ctrld
Status                  : OK
ExitCode                : 0
DesktopInteract         : False
ErrorControl            : Ignore
PathName                : C:\ControlD\ctrld.exe run --cd 1n65nhux8vz --iface=auto --homedir=C:\ControlD
                          --config=C:\ControlD\ctrld.toml
ServiceType             : Own Process
StartMode               : Auto
__GENUS                 : 2
__CLASS                 : Win32_Service
__SUPERCLASS            : Win32_BaseService
__DYNASTY               : CIM_ManagedSystemElement
__RELPATH               : Win32_Service.Name="ctrld"
__PROPERTY_COUNT        : 26
__DERIVATION            : {Win32_BaseService, CIM_Service, CIM_LogicalElement, CIM_ManagedSystemElement}
__SERVER                : DESKTOP-58VAUVH
__NAMESPACE             : root\cimv2
__PATH                  : \\DESKTOP-58VAUVH\root\cimv2:Win32_Service.Name="ctrld"
AcceptPause             : False
AcceptStop              : True
Caption                 : Control-D Helper Service
CheckPoint              : 0
CreationClassName       : Win32_Service
DelayedAutoStart        : False
Description             : A highly configurable, multi-protocol DNS forwarding proxy
DisplayName             : Control-D Helper Service
InstallDate             :
ProcessId               : 5136
ServiceSpecificExitCode : 0
Started                 : True
StartName               : LocalSystem
State                   : Running
SystemCreationClassName : Win32_ComputerSystem
SystemName              : DESKTOP-58VAUVH
TagId                   : 0
WaitHint                : 0
Scope                   : System.Management.ManagementScope
Path                    : \\DESKTOP-58VAUVH\root\cimv2:Win32_Service.Name="ctrld"
Options                 : System.Management.ObjectGetOptions
ClassPath               : \\DESKTOP-58VAUVH\root\cimv2:Win32_Service
Properties              : {AcceptPause, AcceptStop, Caption, CheckPoint...}
SystemProperties        : {__GENUS, __CLASS, __SUPERCLASS, __DYNASTY...}
Qualifiers              : {dynamic, Locale, provider, UUID}
Site                    :
Container               :

The Service is running, but the interfaces aren't set to 127.0.0.1 as normally

If i reload the service manually it works. Don't know what interferes

[matrix8967]

Strange...Just to rule out this DoH3 issue can you try using regular DoHin your config and see if the issue persists?

[xopez]

Switched to DoH in toml config
Reload Service, so the new one gets deployed.
Pressed in Windows on Shutdown,
Started Windows again.

Same is happening.

[xopez]

Okay, it seems I found a way how this happens.
I have attached my computer with LAN directly to my Unifi Dream Router.
When the tagged vlan management is set to "allow all" windows seems to be getting IPv6 addresses of all of the tagged vlans (dunno if unifi bug or a missunderstanding myself).
With block all the network only itself is tagged so windows only recieves an ipv6 address on the correct subnet.
Since that ctrld works like a charm.
Yes it seems to be wrong that windows is getting wrong ipv6 subnet prefixes, but that shouldn't result in ctrld no getting correctly up