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Computer unreachable or offline Issue

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Shawn Giesbrecht

I am still having an issue with 'Computer unreachable or offline".

  • Have access to Admin$ but no access to IPC$. But don't have access to IPC$ to any workstations (even with the ones that work)
  • Windows 7 & Windows 10
  • Wireless and wired
  • RPC Service running
  • Random selected of Windows boxes (not a port or a permission issue)
  • Heartbeat detects with no issues
  • Tried all 'resolutions' suggested in the forums, still not working

Any help will be grateful.

Thank you.

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Comments

9 comments
Date Votes
  • Avatar
    Patrick Pierce

    Have you reference this KB?

    https://support.pdq.com/knowledge-base/1055

    Only two things I can think of.

    • File and Printer sharing
    • LocalAccountTokenFilterPolicy in HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
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  • Avatar
    Shawn Giesbrecht

    Steps taken from KB1055

    Firewall Exceptions are set up correctly: Windows Firewall Ports and Exceptions. * Not blocked

    File and Printer Sharing is enabled. * Shared

    GPO/SRP or Antivirus is not blocking access to the ADMIN$. * Not blocked

    Using \X.X.X.X\ADMIN$ * Tested with no issues

    Appropriate credentials of local administrative user have been set (and tested). * Only one account & tested

    If the target computer is not a member of a Windows 2003 or later Active Directory domain * Is a member of Active Directory

    Create a DWORD value called HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\SystemLocalAccountTokenFilterPolicy and assign it a value of 1. * Registry added and Rebooted

    Remote Repair Tool * Ran and all (including IPC$) returned checked (healthy)

    GPO and Scripts: * None

    Administrative Shares are Missing: * All listed and permitted

    Multiple Administrators: * Only one PDQ Administrator account to install/inventory

    Malware or Virus: * A/V did not detect any issues

    • Can run PDQ Tools with no issues (including customized Powershell cmd)
    • Windows 7 SP1 Professional
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  • Avatar
    Wei

    Check the Windows firewall settings, make sure it's not "Unidentified network".

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  • Avatar
    Shawn Giesbrecht

    Confirmed that it is not 'Unidentified network'

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  • Avatar
    Wei

    Do you get same error when use both IP address and FQDN ?

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  • Avatar
    Shawn Giesbrecht

    if you mean "\xxx.xxx.xxx.xxx\admin$" and "\(computername)\admin$", yes they work

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  • Avatar
    Wei

    I mean can you deploy to IP address instead of FQDN ?

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  • Avatar
    Shawn Giesbrecht

    Both fail to deploy but I can get admin$ from both

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  • Avatar
    Wei

    The next step would be running wireshark capture between your PDQ server and client while doing a deploy then contact pdq support.

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