Internet Not working in pods

[khalidkhushal]

Environmental Info:
K3s Version:
k3s version v1.31.0+k3s1 (34be6d9)

Node(s) CPU architecture, OS, and Version:
Linux 6.8.0-45-generic #45-Ubuntu SMP PREEMPT_DYNAMIC Fri Aug 30 12:02:04 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

Cluster Configuration:
Single node cluster

Describe the bug:
I am facing an issue where my cluster lost the access to internet, every time I try to access the internet from within the pod it gives error e-g:
-0:~$ wget google.com
--2024-09-26 15:00:03-- http://google.com/
Resolving google.com (google.com)... failed: Temporary failure in name resolution.
wget: unable to resolve host address ‘google.com’

Steps To Reproduce:
-0:~$ wget google.com
--2024-09-26 15:00:03-- http://google.com/
Resolving google.com (google.com)... failed: Temporary failure in name resolution.
wget: unable to resolve host address ‘google.com’

Additional context / logs:
Right now, I have not installed any CNI Plugin, the default CNI plugin flannel is being used. The internet was working fine before but once my PC got disconnected from internet and I don't know what happened internet is no more accessible inside pods.

Please suggest me what fixes can I make to get it running again.

[khalidkhushal]

@brandond
Can you please me a solution here?
I am stuck on this for days.