Hi, We have this ongoing battle with Internet Access detection in AVD, we have several sites that have similar issue.When Autoscaler kicks in, in the morning, boots the machines up, we can on occasion get random machines that believe they have no internet access, when they do. You can browse the internet and the agent is available in AVD, however it stops office from working. Outlook thinks its offline, when it isn't. This is causing us greif with our users. 3 other of our sites have the same issue, we managed to rectify that by disabling IPV6 on the devices. However we have 1 site that just won't be completely eradicated of this and keeps popping up from time to time, if we reboot the machine again it then works fine. Is there any permeant solution to this, from what I read it probes some Microsoft websites to detect it can connect to the internet, they do go through Defender web filter and have added these sites as exceptions but the issue has re-occurred again.

Hi Liam,Yes thats right, and this will most probably be in your GPO if you have one thats been taken off the internet to do with Optimizing WVD, and the location of that setting in GPO is:Computer Config > Admin Templates > Network > Network Connectivity Status Indicator > Specify Passive Polling = DisabledAnd no we dont have static IP's on the hosts, everything is back to how it should be and working great now... so glad I found this post, been working with MS support for months and they could not see what was happening. They were blaming the Image, Firewall, AV litrially everything!Good luck and hope this sorts you out

We're experiencing the same issue with multiple environments, our only resolution at the moment is to restart the affected AVD Session Host. Connectivity to the Internet is fine, have also run the WVD Agent URL Tool which shows no issues. Microsoft 365 Services however are disrupted and fail to work until the restart is carried out. Any help would be appreciated.

jmann3627 Did you ever get to the bottom of this issue, we seem to be getting it randomly also. Thanks

gjone92 We've not come up with a permanent solution, but we have found that configuring the Network Card with a Static IP Address temporarily does resolve the issue without a restart. However this isn't a recommended solution. We have also been advised to try restarting the "DHCP Client" Service on the Virtual Machine but this is yet to be tested. Please let me know if you test this and it resolves.

KevHal did you get anywhere with the issue by any chance? jmann3627 I have logged this with MS and currently working with them, but at the moment doesn't matter what we do the fix seems to last a week at most then the problem is back. Do you have any Host Pools that are using AutoScale by any chance and then a pool that doesn't? What we seem to notice is that the pool that doesn't use Autoscale never seems to have the issue.

No Internet Accesss issues across AVD | Microsoft Community Hub

jmann3627
Copper Contributor
Aug 12, 2022
We're experiencing the same issue with multiple environments, our only resolution at the moment is to restart the affected AVD Session Host. Connectivity to the Internet is fine, have also run the WVD Agent URL Tool which shows no issues. Microsoft 365 Services however are disrupted and fail to work until the restart is carried out. Any help would be appreciated.
- gjone92
  Copper Contributor
  Jan 17, 2023
  jmann3627 Did you ever get to the bottom of this issue, we seem to be getting it randomly also.
  
  Thanks
  - jmann3627
    Copper Contributor
    Jan 17, 2023
    gjone92 We've not come up with a permanent solution, but we have found that configuring the Network Card with a Static IP Address temporarily does resolve the issue without a restart. However this isn't a recommended solution. We have also been advised to try restarting the "DHCP Client" Service on the Virtual Machine but this is yet to be tested. Please let me know if you test this and it resolves.
gjone92
Copper Contributor
Feb 02, 2023
Anyone have any more updates with this by any chance?

I tested putting a Static IP on the NIC on Azure and locally on the VM and still have the problem happening.
- jmann3627
  Copper Contributor
  Feb 02, 2023
  Unfortunately not. I've had a ticket raised with Microsoft since last week, and apart from recommending we assign a Public IP Address to the AVD Session Host (no thank you) it's been radio silence since. Thanks for the update mentioning what you've tried within the Azure Portal. I'll chase Microsoft Support for an update.
  - jmann3627
    Copper Contributor
    Feb 20, 2023
    Hi gjone92 KevHal ,
    
    Not sure if either of you are still experiencing this issue, but if you are, can you check on your AVD Session Hosts for the existence of Registry Key:
    "RegItemPath": "HKLM:\\SOFTWARE\\Policies\\Microsoft\\Windows\\NetworkConnectivityStatusIndicator", "RegItemValueName": "DisablePassivePolling", "RegItemValueType": "DWord", "RegItemValue": "1",
    We have this Registry Key enabled on AVD Session Hosts that we've experienced the issue on. Happened to chance across this post on GitHub which matches the issue. You may have run the Azure Virtual Desktop Optimisation Script (VDOT) which previous versions have created this key, so I think that's where we have come across the issue.
    
    I've not removed it yet, as I am still identifying the systems it's on, but I would be interested to know if any of your systems have it also? Thanks
MathieuVandenHautte
Steel Contributor
Jun 30, 2023
Hi Kevhal,

The issue is caused by the passive Pooling configuration .

The resolution is to delete the registry key below : HKLM\Software\Policies\Microsoft\Windows\NetworkConnectivityStatusIndicator\DisablePassivePolling

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