How do I stop SVChost.exe from commandeering port 67 in Windows 10?

Meatychudd 0 Reputation points
2024-04-16T11:19:26.41+00:00

Hello,

I am operating on system platform Edition Windows 10 Pro

Version 22H2

Installed on ‎3/‎3/‎2022

OS build 19045.4291

Experience: Windows Feature Experience Pack 1000.19056.1000.0

   I have encountered an issue which is causing SVChost.exe to block port 67.  This port is used by another software (BOOTP) and Windows continuously blocks it.  I've attempted CMD kill commands, manual task manager and service process terminations, and anything else I've been able to locate online.  As soon as the process dies, it auto-restarts under a new PID and continues to block the port.

   There is no identifier other than the PID that I'm able to locate.  If there's a specific service that could be disabled, I would do that... but considering that SVChost.exe is a windows protocol (I believe), I don't think my chances are great.

   Without some kind of resolution, I'm approaching a full wipe and reformat.  The BOOTP software worked before and the port was never blocked.  I'm beginning to think it may be associated with one or more Windows updates.   If anyone has ever encountered something like this and has a solution, it would be greatly appreciated.

Thank you all.

Windows 10
Windows 10
A Microsoft operating system that runs on personal computers and tablets.
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  1. Hania Lian 8,106 Reputation points Microsoft Vendor
    2024-04-18T03:45:10.86+00:00

    Hell,

    SVCHost.exe is indeed an integral part of Windows, which is used to host multiple Windows services. Blocking entire svchost.exe may have undesirable effects because multiple services use this process, some of which are critical for the system to operate correctly.

    One approach would be to find the specific service within the group of services hosted by the svchost.exe process that’s locking port 67.

    Command Line: Use the command tasklist /svc /fi "imagename eq svchost.exe" in the Command Prompt to view the services running under each svchost.exe process.

    Once you’ve established which services are part of the problematic svchost process, do a bit of research on what each of them does. One of them may be tied to network communications (like DHCP Client, DNS Client, etc.,) which might be the culprit causing your issue.

    If you determine one of them is unnecessary, you can proceed to disable it:

    Run ‘Services.msc’ from Run window ( Win + R ).

    Find the service you suspect from the list.

    Right-click and open ‘Properties’.

    Stop the service and then set the ‘Startup type’ to ‘Disabled’.

    In case it’s a Windows service related to a recent update that’s causing the issue, you might consider uninstalling that update.

    Best Regards,

    Hania Lian

    ============================================

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