No Internet in wls2 ubuntu

[pulivenu]

Upgraded to wsl2, installed Ubuntu 20.04,
No internet in WLS2 linux system.

I've re-installed multiple times, removed wls and redid it. no luck

Appreciate any help
Puli

[licanhua]

Can you collect-wsl-logs? I can take a look at the logs to see if there is any error reported.

[jbc22]

@licanhua I followed the steps and submitted. I'm experiencing the same issue.

[licanhua]

Please share the link for the log

[matjawor]

I confirm the same issue after upgrade to WSL2 from WSL1. Additional network pieces of information.

Windows WSL vEthernet:

Ethernet adapter vEthernet (WSL):

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Hyper-V Virtual Ethernet Adapter
Physical Address. . . . . . . . . : 00-15-5D-7E-02-04
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::4c15:3b73:ba02:efe5%51(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.192.1(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.240.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 855643485
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-26-FC-B4-C9-F8-CA-B8-26-49-8F
DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Enabled

Ubuntu 20.04 ip address and ip route

ip address
5: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 00:15:5d:16:c5:73 brd ff:ff:ff:ff:ff:ff
inet 192.168.206.156/20 brd 192.168.207.255 scope global eth0

ip route
default via 192.168.192.1 dev eth0
192.168.192.0/20 dev eth0 proto kernel scope link src 192.168.206.156

cat /etc/resolve.conf
nameserver 192.168.192.1

Effect, no internet access in Ubuntu, the host is not accessible, a firewall (ESET) is disable while testing. Docker desktop installed and running on the Windows host (if it could be the issue).

[licanhua]

@matjawor, From network aspect, the ip config looks good.
Because your netmask is a.b.c.d/20, so 192.168.192.1 and 192.168.206.156 are in the same subnet.

There are lot of possibilities which may cause issue, For example, there is another network on Windows(you can check it via ipconfig) which ip is assigned any ip among 192.168.192.1 - 192.168.207.254.

You can start with traceroute www.microsoft.com from Ubuntu. I expect you see the first hop like
1 192.168.192.1 0.205ms 0.172ms 0.196ms

If you can saw more than 2 hops, then you can compare with the output of tracert www.microsoft.com on Windows. Since you have problem to access internet, most of time, the 2nd hop is not reachable.

[jbc22]

I had to recreate the submission since I wasn't logged in the first time. Here is the link: https://aka.ms/AAa0oze

[licanhua]

@jbc22 Thanks for your link, but unfortunately the logs your submitted is empty. Most of time, empty logs is because user doesn't start/stop recording when submitting the logs via Feedback Hub.

I don't know if reset the network will help

[jbc22]

The reset network steps did not resolve. I'd also reset the app, uninstalled and reinstalled.

The interface isn't pulling an IP address from DHCP.

Here is another attempt to provide logs via Feedback Hub. https://aka.ms/AAa2a1q

[licanhua]

Thanks. You submitted the log, but there is no log associated with it.
Can you confirm if you are hitting Mysterious "correction" of IP address from 192.168.x.x to 172.x

I don't know if any workaround of #5061 applies to you.

[vineettalwar]

I can confirm this issue in freshly installed windows 10 pro 2004 .
After next system restart, there is no interent, no updates.
Tried all work arounds available in these tickets, even stopped windows defender or add exclusion rules for wsl.
Stil there is no internet in wsl2.

Update: A workaround from #5061 (comment) is getting the job done

[jbc22]

@licanhua what logs can I submit with this issue?

Neither of those two apply.

[jbc22]

@licanhua I downgraded to WSLv1 for that image and it's working 100% now.

[lukee1234]

If you modified, moved or compressed the temp folder, look at #5437 for the solution

[hsmyers]

I have the same problem. That said, I don't think it is a WSL problem—I was working just fine less than two weeks ago. The problem in-between? Windows fast-trac updates. Hardly the first time I've been crippled by a new version…

[pulivenu]

@licanhua
Issue has been open for a while,
Any updates on when the issue will be addressed by microsoft ?

[hsmyers]

I've only had the problem for two weeks— but I've seen reports back to at least March so I'd guess it's a complicated problem that they are playing whack-a-bug with.

[licanhua]

I don't have update on this.
yes. Networking is a complex problem. It's even hard to guess if there is no log

[thiagaoplusplus]

I just migrated from WSL1 to 2 and the Ubuntu lost the internet conectivity. In my case, I'm using the PC from work, and the problem was solved by disabling the McAfee Endpoint Security Firewall.

[microsoft-github-policy-service]

This issue has been automatically closed since it has not had any activity for the past year. If you're still experiencing this issue please re-file this as a new issue or feature request.

Thank you!