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Karl-WE's avatar
Nov 19, 2020

[MAJOR ISSUE] b20257, b20262 DNS Server service keeps crashing 0x0374

Dear Server Insider team,

 

I am facing the following issue starting with build b20257

DNS Server service keeps crashing and stopped on all ADDS DCs consisting of only hardware and Hyper-V ADDS Servers.

 

Effectively the domain becomes unuseable. It seems that the crash occours every time a DNS update is incoming

 

affected builds: Windows Server vNext SAC + LTSC starting with b20257, b20262

unaffected builds: Server vNext SAC + LTSC  b20251 or earlier

 

Scenario:

3 DCs, 1 Site, Server vNext SAC (2 VMs), LTSC (Hyper-V Server, SET Switch)

 

Reproducible: yes
Scope: Affects all ADDS Domain Controllers (hardware or physical)

 

 

exemplary log:
DNS Service keeps crashing (seems like it does so on every incoming DNS update request).

Servername 1000 Error Application ErrorApplication12.11.2020 21:19:39
Faulting application name: dns.exe, version: 10.0.20257.1000, time stamp: 0x749de11c
Faulting module name: ntdll.dll, version: 10.0.20257.1000, time stamp: 0x12a774b2
Exception code: 0xc0000374
Fault offset: 0x0000000000106489
Faulting process id: 0x36b8
Faulting application start time: 0x01d6b930e2ddeb12
Faulting application path: C:\WINDOWS\system32\dns.exe
Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll
Report Id: 67ab2451-27d1-4fb2-a830-270509c59348

 

When did the issue appear:

after upgrade to 20257.

 

  • I now have that build and it does seem to cure the DNS issues. Thanks"
  • Thomas Lee's avatar
    Thomas Lee
    Brass Contributor
    I have 20270 and this bug has re-surfaced. I can not keep the DNS Service running.
  • Thomas Lee's avatar
    Thomas Lee
    Brass Contributor
    I now have that build and it does seem to cure the DNS issues. Thanks"
    • Elden_Christensen's avatar
      Elden_Christensen
      Icon for Microsoft rankMicrosoft

      Great to hear Thomas, thank you for reporting the issue, your patience while we fixed it, and verifying it is now addressed!

       

      Thanks!
      Elden

      • Karl-WE's avatar
        Karl-WE
        MVP

        Elden_Christensen Thomas Lee 

        can confirm all Server LTSC GUI / Server Core SAC AD DS DNS are working fine now after IPU to b20270!

        Thanks for transparent communication and quick fix!

  • wredifer's avatar
    wredifer
    Copper Contributor

    Karl-WE 

    I'm experiencing the same.  The DNS server goes offline after any Active Directory install.

    OS Build 20257.1000
    Performed multiple installs and attempts, all with the same result (attached).
    Installed under Hyper V running the same Insiders build of Server.  And the other a Windows 10 19042.630.

    • Elden_Christensen's avatar
      Elden_Christensen
      Icon for Microsoft rankMicrosoft

      Thank you for reporting this issue!  We have a fix to address this issue and it will be available in the next Windows Server Insiders build.

       

      Thanks!
      Elden

      • Thomas Lee's avatar
        Thomas Lee
        Brass Contributor

        When do you expect a new build with the fix?  

         

         

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