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DNS in WSL2 stops working after Wifi change in mirrored mode #12246

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Description

Windows Version

Microsoft Windows [Version 10.0.22631.4317]

WSL Version

2.3.24.0

Are you using WSL 1 or WSL 2?

  • WSL 2
  • WSL 1

Kernel Version

5.15.153.1-2

Distro Version

Ubuntu 22.04

Other Software

No response

Repro Steps

curl google.com
# Connect to another wifi network
curl google.com

Expected Behavior

Getting the same response on both curl requests:

<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8">                                                                              <TITLE>301 Moved</TITLE></HEAD><BODY>                                                                                                                       <H1>301 Moved</H1>                                                                                                                                          The document has moved                                                                                                                                      <A HREF="http://www.google.com/">here</A>.                                                                                                                  </BODY></HTML>  

Actual Behavior

On the second curl:

curl: (6) Could not resolve host: google.com

With the verbose flag:

* Could not resolve host: google.com
* shutting down connection #0
curl: (6) Could not resolve host: google.com

Diagnostic Logs

I also tested dig:

dig google.com
;; communications error to 8.8.8.8#53: timed out
;; communications error to 8.8.8.8#53: timed out
;; communications error to 8.8.8.8#53: timed out

; <<>> DiG 9.18.28-0ubuntu0.22.04.1-Ubuntu <<>> google.com
;; global options: +cmd
;; no servers could be reached

Note that my /etc/resolve.conf looks like this:

nameserver 8.8.8.8
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