IPSec service fail to start .Error 1747 RRS feed

  • Question

  • Windows XP Media Center 2005 with all service packs and patches till date

    In GUI mode IP Sec service fail to start with an error code 1747 authentication service un known


    Through Command mode it starts with net start policyagent

    Service started successfully is what we can see.


    When we verify event viewer


    Event viewer displays two information and one error messages at the same time.


    Information message one = IPSec service started

    Information message two = IpSec service stopped safely

    Error message = IPSec service authentication service unknown.Error1747


    when executed on command line mode

    sc query policyagent

     describes exit code 1747 

    How to resolve this issue and make IPSec service up and running?.

    Inputs greatly appreciated

    Sunday, October 28, 2007 9:39 PM

All replies

  • 1747 is a generric error code. You will get that for pretty much everything. Did you got this problem after installing the latest updates? Can you please confirm this?


    I am guessing one or more of the updates contained something which overwrites/modifies the NAT config. In that case, you might need to manually try disabling the updates one by one which is not going to be easy and if it did indeed corrupt it, then its unlikely to help either. Just a thought.


    Also, if you installed the router drivers, can you tell me which router you are using and the driver version?

    Monday, October 29, 2007 6:07 PM
  • Thanks for your feed back.

    I had checked this when the system was almost in raw stage.Just after installing OS without any updates.

    I had encountered same situation with 1747 not allowing IPSec service to start.

    I have .net framework 3.0 and all its updates.Is it happening because of IPSec driver on my computer.I dont use my own router.It is an unsecured wireless network without any WPA like security.

    I installed KB907865 (Microsoft recommends this update as un harmful).Nothing helpful.

    Hence we can rule out Anti Virus,updates and additional software for trouble shooting.

    Something essential is missing from Microsoft Original WINXP MEDIA CENTER 2005 OS.I have seen similar postings on web.Any solution would be appreciated


    Tuesday, October 30, 2007 4:36 PM