Unable to connect to internet

[trilochan-kumar]

Windows Version

Microsoft Windows [Version 10.0.22631.3447]

WSL Version

2

Are you using WSL 1 or WSL 2?

• WSL 2
• WSL 1

Kernel Version

5.15.146

Distro Version

Ubuntu 22.4.3 LTS

Other Software

No response

Repro Steps

Tried using the following commands:

sudo apt update

ping google.com

And also I tried updating the /etc/resolv.conf as follows:
GNU nano 6.2 /etc/resolv.conf

nameserver 8.8.8.8
nameserver 8.8.4.4

And updated the /etc/wsl.conf as follows:

  GNU nano 6.2                                          /etc/wsl.conf                                                   
[network]
generateResolvConf = false

[boot]
systemd=true

Expected Behavior

I expected it to connect to the internet, so that I can download multiple applications from the internet.

Actual Behavior

[Not updating and not even pinging to the google.]
ping: google.com: Temporary failure in name resolution

Diagnostic Logs

No response

[github-actions]

Logs are required for review from WSL team

If this a feature request, please reply with '/feature'. If this is a question, reply with '/question'.
Otherwise please attach logs by following the instructions below, your issue will not be reviewed unless they are added. These logs will help us understand what is going on in your machine.

How to collect WSL logs

Download and execute collect-wsl-logs.ps1 in an administrative powershell prompt:

Invoke-WebRequest -UseBasicParsing "https://raw.githubusercontent.com/microsoft/WSL/master/diagnostics/collect-wsl-logs.ps1" -OutFile collect-wsl-logs.ps1
Set-ExecutionPolicy Bypass -Scope Process -Force
.\collect-wsl-logs.ps1

The scipt will output the path of the log file once done.

Once completed please upload the output files to this Github issue.

Click here for more info on logging
If you choose to email these logs instead of attaching to the bug, please send them to [email protected] with the number of the github issue in the subject, and in the message a link to your comment in the github issue and reply with '/emailed-logs'.

View similar issues

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it!

Open similar issues:

• DNS is not working on WSL (#10068), similarity score: 0.81
• WSL2 - No internet/network on brand new Windows install/etc (#7625), similarity score: 0.81
• WSL2 - No internet connectivity. DNS Issues(Temporary failure in name resolution) (#6404), similarity score: 0.80

Closed similar issues:

• WSL Bug issue-Temporary failure in name resolution (#7009), similarity score: 0.83
• DNS lookup not working in WSL2 even after setting wsl.conf and resolv.conf (#10978), similarity score: 0.80

Note: You can give me feedback by thumbs upping or thumbs downing this comment.

[trilochan-kumar]

Here are the logs....
WslLogs-2024-04-25_18-22-59.zip

[github-actions]

Diagnostic information

Detected appx version: 2.1.5.0

[OscBacon]

+1 also getting this issue
And have to shutdown wsl and restart

[trilochan-kumar]

Shutted down the wsl using wsl --shutdown command and also restarted the laptop. But still no change when I tried ping google.com command in Ubuntu Terminal.

[kardeiz]

I'm also having this issue with WSL2 on Microsoft Windows [Version 10.0.19045.4291]. It started sometime in the last 5-10 days...

[S1RENS]

I have this issue. If I allow Hyper-V firewall outbound connections it works, but I don't know if this is a safe practice.

[neatchee]

Recent changes in the latest version of Windows 11 have made it so that the Hyper-V Network Firewall blocks inbound and outbound traffic by default.

The ONLY default rules that exist are for ICMP (v4 and v6)

In order to get connectivity working again, it is currently necessary to use Powershell on the host machine to create new Hyper-V Firewall rules allowing the necessary traffic.

For example, if we want 'nslookup' to work from an Ubuntu WSL2 install, we need to create a rule to allow outbound traffic on port 53 through the Hyper-V Firewall

New-NetFirewallHyperVRule -Name DNS-Out:TCP -DisplayName "DNS-Out:TCP" -Direction Outbound -VMCreatorId '{40E0AC32-46A5-438A-A0B2-2B479E8F2E90}' -Protocol TCP -RemotePorts 53
New-NetFirewallHyperVRule -Name DNS-Out:UDP -DisplayName "DNS-Out:UDP" -Direction Outbound -VMCreatorId '{40E0AC32-46A5-438A-A0B2-2B479E8F2E90}' -Protocol UDP -RemotePorts 53

And to allow standard web traffic, we need to allow ports 80 and 443 (TCP only)

New-NetFirewallHyperVRule -Name HTTP/S-Out -DisplayName "HTTP/S-Out" -Direction Outbound -VMCreatorId '{40E0AC32-46A5-438A-A0B2-2B479E8F2E90}' -Protocol TCP -RemotePorts 80,443

You can read about how to manage Hyper-V firewall rules here: https://learn.microsoft.com/en-us/windows/security/operating-system-security/network-security/windows-firewall/hyper-v-firewall

............................................

With that out of the way, time for my personal opinion:

This is awful. Truly awful. There is no GUI option for managing HyperV firewall rules. There was no warning that this change was coming. There is no indication to the average WSL user that this is the cause of the problem. And there is no reasonable default configuration for the HyperV firewall.

I am not looking forward to managing these rules going forward. What a nightmare.

[chanpreetdhanjal]

Hi. Can you please collect networking logs by following the instructions below?
https://github.com/microsoft/WSL/blob/master/CONTRIBUTING.md#collect-wsl-logs-for-networking-issues

[neatchee]

Hi. Can you please collect networking logs by following the instructions below? https://github.com/microsoft/WSL/blob/master/CONTRIBUTING.md#collect-wsl-logs-for-networking-issues

Would you like the logs with or without the Hyper-V firewall rules I described above?

[CatalinFetoiu]

@neatchee I see you encounter a "Temporary failure in name resolution" - can you please try enabling dnsTunneling and see if that resolves the problem?

If you still encounter the problem after doing this, please collect networking logs

thanks