Networking breaks if %TEMP% is not the default

[lcsondes]

Windows Build Number

Microsoft Windows [Version 10.0.19042.867]

WSL Version

• WSL 2
• WSL 1

Kernel Version

5.4.72-microsoft-standard-WSL2

Distro Version

Gentoo

Other Software

No response

Repro Steps

1. Have a WSL distro with working networking (e.g., ping 1.1.1.1 works as you'd expect)
2. Change the TEMP and TMP environment variables (in Windows) to something other than the default, preferably also on another drive like D:\Temp when WINDIR is C:\WINDOWS - it seems that the per-user ones are the ones that matter but change all 4 of them just in case
3. Reboot
4. Start the very same WSL distro and try step 1 again

Note that the non-default Temp folder existed and was NOT NTFS-compressed in this scenario, which is another bug that will break WSL networking.

Expected Behavior

Networking to keep working regardless of what TEMP/TMP are on the Windows side if they still point to a sensible path

Actual Behavior

Network is unreachable or Temporary failure in name resolution depending on you pinging an IP address or a domain name

Diagnostic Logs

No response

[0xbadfca11]

#5437

[benhillis]

/dupe #5437

[ghost]

Hi! We've identified this issue as a duplicate of another one that already exists in this repository. This specific instance is being closed in favor of tracking the concern over on the referenced thread.

Thanks for your report!