How to Start/Stop Link Layer Topology Discovery Mapper service
Service name: lltdsvc
Display name: Link Layer Topology Discovery Mapper
Description:
Creates a Network Map, consisting of PC and device topology (connectivity) information, and metadata describing each PC and device.
If this service is disabled, the Network Map will not function properly.
Path to executable:
C:\Windows\System32\svchost.exe -
CMD:
This method shows you how to Start/Stop Link Layer Topology Discovery Mapper service from Command Prompt
Please perform the following steps:
Please go to Start and click on the Search programs and files
Type cmd, right click on cmd icon under the Programs and click on Run as administrator
Please confirm User Account Control pop-
Please select, right and copy a registry key from below, then right click on command prompt window, select Paste and press Enter
To Start Link Layer Topology Discovery Mapper service:
net start lltdsvc
Note: You can’t start a service if Startup type is on Disabled.
To Stop Link Layer Topology Discovery Mapper service:
net stop lltdsvc
To change Startup type:
Automatic:
REG add "HKLM\SYSTEM\CurrentControlSet\services\lltdsvc" /v Start /t REG_DWORD /d 2 /f
Manual:
REG add "HKLM\SYSTEM\CurrentControlSet\services\lltdsvc" /v Start /t REG_DWORD /d 3 /f
Disabled:
REG add "HKLM\SYSTEM\CurrentControlSet\services\lltdsvc" /v Start /t REG_DWORD /d 4 /f
Automatic (Delayed Start):
REG add "HKLM\SYSTEM\CurrentControlSet\services\lltdsvc" /v Start /t REG_DWORD /d 2 /f
Note: When you change to Automatic (Delayed Start) a new key DelayedAutostart is created with value 1.
REG add "HKLM\SYSTEM\CurrentControlSet\services\lltdsvc" /v DelayedAutostart /t REG_DWORD /d 1 /f
When you change to Automatic from Automatic (Delayed Start), DelayedAutostart change value to 0.
REG add "HKLM\SYSTEM\CurrentControlSet\services\lltdsvc" /v DelayedAutostart /t REG_DWORD /d 0 /f