Ping Issue

Akash Kumar Mandal 0

We were attempting to ping the server, but it was not working initially. However, after changing the NIC, it started working.

We would like to understand the issue and how to fix in existing NIC

2 answers

Marcin Policht 35,360 Reputation points MVP

2025-02-07T12:07:47.2466667+00:00

Follow https://learn.microsoft.com/en-us/azure/virtual-network/troubleshoot-vm-connectivity

If the above response helps answer your question, remember to "Accept Answer" so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.

hth

Marcin
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Akash Kumar Mandal 0 Reputation points

2025-02-07T13:14:07.7633333+00:00

we already checked shared documentation but we didnt get proper outcome. after adding new NIC ping start working, why? Note: We used Same NSG rule

Marcin Policht 35,360 Reputation points MVP

2025-02-07T14:38:49.4333333+00:00

That is something you'd not likely be able to establish at this point. To troubleshoot, you do need access to the environment where the issue exists

If the above response helps answer your question, remember to "Accept Answer" so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.

hth

Marcin

Praveen Bandaru 425 Reputation points Microsoft Vendor

2025-02-10T17:31:46.0133333+00:00

Hello Akash Kumar Mandal

Greetings!
Following up to see if the above suggestion was helpful. And, if you have any further query do let us know

Praveen Bandaru 425 Reputation points Microsoft Vendor

2025-02-11T09:53:45.4666667+00:00

Hello Akash Kumar Mandal

Greetings!

Following up to see if the above suggestion was helpful. And, if you have any further query do let us know.

Praveen Bandaru 425 Reputation points Microsoft Vendor

2025-02-13T10:39:45.6566667+00:00

Hello Akash Kumar Mandal

Greetings!

You can check by creating a new test VM and associate the non-working NIC to it then try to do ping from the existing server by disabling the windows defender firewall.

If ICMP ping is not working, please initiate a TCP ping.

I could suggest you restart you're existing VM on non-working hours and check the ping test, if possible, share us the ping result.

Check the below document: https://learn.microsoft.com/en-us/azure/virtual-network/troubleshoot-vm-connectivity#step-1-check-whether-the-network-adapter-is-in-a-failed-state
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Alex Burlachenko 1,010 Reputation points

2025-02-13T10:54:58.3933333+00:00

Hi, try check if the old nic is assigned the right ip, subnet, and isn’t blocked by NSG rules. After all, test the config try to compare the old nic’s settings with the new one. If something’s off, tweak it. Sometimes just restarting the vm or detaching/reattaching the nic can fix it. If all else fails, hit up Azure support. They can dig into the backend and figure out why the old nic was acting up.

May be the old nic was probably misconfigured, blocked, or just busted. Swap it out, check the settings, or get azure support to sort it out. Easy peasy.

rgds,

Alex
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Ping Issue

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