import old posts

content/posts/general-network-error-54.md

@@ -0,0 +1,27 @@
++++
+author = "lf"
+categories = ["PowerShell", "Windows Server", "Active Directory"]
+date = 2015-05-23T21:48:15Z
+description = ""
+draft = false
+path = "/blog/general-network-error-54"
+tags = ["PowerShell", "Windows Server", "Active Directory"]
+title = "General Network Error when running Install-ADDSForest"
+
++++
+
+When I was messing about with AD DS a bit on Windows Server 2016 TP 2, I encountered the error General Network Error, with error ID 54. This is obviously a very unhelpful error. In troubleshooting, I noticed that the VM was being assigned an address in `169.254.x.x`. This wasn't part of my intended IP range, so I started investigating.
+
+It turns out that `169.254.x.x` is a reserved range for APIPA (Automatic Private IP Addressing), where an operating system automatically assigns an IP when there is no DHCP available (which there wasn't because I intended to set up Windows DHCP). After disabling this, the AD setup worked correctly.
+
+You may be wondering how to disable this problematic system. Here's how you do it (in PowerShell):
+
+```powershell
+# Disable DHCP
+Get-NetAdapter | Set-NetIPInterface -Dhcp Disabled
+# Disable APIPA
+Set-ItemProperty 'HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters' -Name IPAutoconfigurationEnabled -Value 0 -Type DWord
+# Reboot to apply
+Restart-Computer
+```
+