I'm having a nasty bug of the horizon agent on my own computer. Any time I try and install it, it crashes during the audio driver install it looks like. Is there any way for me to clean this out and fix it? I'd like to not have to rebuild my PC

I just got an invite to an Omnissa event on 4th March in London - THE SAME DAY as EUC Forum in London.... I'd get the logic of doing it the day after/before to pick up people visiting the EUC one... but to compete seems really odd and odd optics to not sponsor EUC but run a competing event .... make it make sense - have I missed anything?? @James Rankin @Rob Beekmans

Hey all - we have an issue with our non-persistent instances where some (not all) are hanging on one of two screens: • "Signing out"; or • "This app is preventing shutdown" We can't see an obvious reason for why this is happening. Has anyone had a similar issue or could anyone suggest where to look? Thanks a lot

Hi all, in Horizon 2312.1 I created a Host Pool but selected a wrong VM Folder location. Is it possible to change this?

Hi, anyone aware of a PM over at Omnissa I might be able to speak with regarding passwordless auth?

Hello, Is it possible with Horizon to have Entra ID only VDI Pools?

only specific pools? Yes but its a complected setup. Question, Internal, External or both? All pools, or just specific ones?

Could someone very kindly explain to me briefly the flow that occurs between Workspace One Access services (saas) and Horizon farm onprem? To date everything has been configured with UAG federated SAML with Netscaler IDP. There are no internal connections but only from the internet. What would the introduction of WorkspaceONE access federated with Netscaler entail?

Hi, I was looking for a script to do a refresh/recover of all vm's in the night in a Omnissa 2412 enviroment. Did make a script what get all Machines ID with API in Powershell. When run the next step i get the next error "An error occurred: The remote server returned an error: (400) Bad Request." Here is the code. The $VmId is passed from a other function. It will get the machined ID. That is working, I get the rights ID's.

# Function to reset a VM
function Reset-VM {
    param (
        [string]$VmId
    )

    try {
        # Send the POST request to the API endpoint to reset the VM
	# Headers with authentication token
        $response = Invoke-RestMethod -Uri "$apiEndpoint/inventory/v1/machines/action/recover?enforce=true" -Method Post -Headers $headers -body $body
       
        # Check if the request was successful
        if ($response.StatusCode -eq 204) {
            Write-Output "Reset request sent for VM: $VmId"
        } else {
            Write-Output "Failed to reset VM: $VmId. Status code: $($response.StatusCode)"
            Write-Output "Error message: $($response.Content)"
        }
    } catch {
        Write-Output "An error occurred: $_"
    }
}


# Reset all VMs in the pool
foreach ($vm in $vms) {
$body = @{
    machineID = "$vm"
    Action = "Recover"
} | ConvertTo-Json
Reset-VM -VmId $vm
}

Any one a idea what it can or do I use the wrong API call and body?

Just a heads-up for those of you running Horizon 2412 in Production. It is a ticking timebomb. There is a bug that will kick it into Degraded-Mode 60 days after you installed it. It's it starting to fail for engineers all across the country, but there a posted "fix" in case you need it. A real fix is in the works, this "fix" is more like a delay... Details in the Omnissa Forum: Horizon 8 - Degraded Mode even with active subscription/license - Horizon 8 - Omnissa Community From Omnissa Support: LDAP Entry DetailsProperty

cs-maxDaysToUpdateLicense

• Path:

CN=Common,OU=Global,OU=Properties,DC=vdi,DC=horizon,DC=internal

• Update: Modify the

pae-NameValuePair

property to include: •

cs-maxDaysToUpdateLicense=120

By setting this property in LDAP, the customer can extend the provisioning window by an additional 60 days (i.e., from the total 120 days configured, 60 have already elapsed). Shoutout to Stephen Wagner who brought it to our attention!! This HealthCare Horizon 2412 environment installed 50 days ago thanks you!

be awere: OMSA-2025-0001: Horizon Client for Windows addresses local privilege escalation vulnerability (CVE-2025-25230) https://www.omnissa.com/omsa-2025-0001/

I'll chime in here as well, with another CVE, see https://www.omnissa.com/omsa-2025-0002/ Omnissa Unified Access Gateway (UAG) updates address Cross-Origin Resource Sharing Bypass vulnerability (CVE-2025-25234)

Grr I'm trying to roll new UAGs for the above and my uag deploy is hanging right after it prints the username. IIRC in the past this was due to a bad resource path, which makes sense since I'm on new vcenters now after the umpteeth VCF redeploy at our org. The thing is, I verified the vi:\\ resource path with OVFTool....and even removed the trailing / just in case that's still a thing with OVFTool.

We're seeing issues with the April patches and VMware Tools 12.5.1. We're currently running 12.5.1 in production with the February patches without issue. When logging into a VM with the April patches applied, the session locks. Configuring the pool to use the Horizon IDD for display driver resolves the issue. Repairing and removing/reinstalling has no effect. Horizon 2312.1 with Windows 10 22H2 as the guest OS. We have a case open with Broadcom who hasn't provided detail yet but indicated this may be an issue on the Windows side.

Hello, we have the following situation. Horizon Client logs in from remote with RSA. User starts desktop. Everything works fine as it should. Then user logs off the VDI, but leaves the Horizon Client open. After some time users starts again the desktop, desktop loads, but now it goes to the Windows Logon Screen. So no SSO anymore. Entering username and PW and the user can log in. Is there a way, to force the Horizon Client to reauthenticate after a time, to avoid this issue? Or some another way to have SSO to Windows working? Thanks.

Another question, in Horizon what Tools can you recommend to troubleshoot slow Windows Logins? If I compare with Citrix Director the Helpdesk Tool doesn't supply so much detailed information. I can see lets say that its GPO, but thats it. Is there something else you can recommend?

Has anyone experienced any issues with the Horizon client on Windows 11, where intermittently lag/jitter will be experienced with the mouse, where the session doesn't respond at all (active, but not responding), and a CTRL+ALT+DEL is required on the client side to re-capture and click back (also resulting in CTRL sticky keys on the session). Usually these periods of time occur around this Windows Event Log: Event Source: IsolatedUserMode Event Description Secure Trustlet \??\C:\WINDOWS\System32\NgcIso.exe Id 6 and Pid 5564 started with status STATUS_SUCCESS. First, this occurred only on Windows on ARM, however I'm experiencing it on x86 clients as well now. Google'ing the event log, I see similar reports where this happens with other applications and is related to "Core Isolation" which is part of Windows 11 security. I tried to disable the memory protection, however it's still occurring. Anyone seen this or have any workarounds? It's getting really annoying, especially when on Zoom/Teams, as I completely lose all audio/video.

Good day, does anyone have experience with Horizon 8 on AWS (EC2) - 2-way trust between AWS Managed AD (simple) and on-prem self-managed AD (s2s vpn)? What concerns me is "[ws_winauth] LogonUser FAILED, error=1326 (The user name or password is incorrect.)". Is this because of not having Domain or Enterprise Admin on the AWS side?

i know a bunch of you are probably at nutanix.next, but for the rest of us stuck at home that might have missed the big news: https://www.omnissa.com/insights/Omnissa-Nutanix-AHV-hypervisor/

Question: From what I remember, Horizon (8 or any other version) could not natively provision resources on Azure. For that you needed to use the Edge Gateway appliance to connect to the Horizon Cloud service and the Horizon Cloud entitlement to display the combined resources (on prem + cloud). So at that stage is really two solutions combined, the on-premises one plus the cloud one, versus a single on-premises one that could provision cloud resources directly (like Parallels RAS or Citrix CVAD can do). Am I missing something?

I know I can simply load the horizon agent on Azure VMs but that simply means they may show up as resources available (i.e., a desktop) but there will be no way to treat this as a pool that will scale up and down, create new VMs, etc. It is just a pool of VMs, completely unmanaged.

Is somebody running a Horizon 8 and up-to-date Teams (VDI optimized) client? If yes I would love to get some outputs for my script. Just run the following in a Horizon VDI session with started and optimized Teams. Output should be something like 32xx or 31xx...

# Path to JSON file
$tfwPath = "$env:LOCALAPPDATA\Packages\MSTeams_8wekyb3d8bbwe\LocalCache\Microsoft\MSTeams\tfw\vdi_connection_info.json"
 
# Check if the file exists
if (-Not (Test-Path -Path $tfwPath)) {
    Write-Error "The file vdi_connection_info.json cannot be found: $tfwPath"
    exit 1
}
 
# Get and convert JSON
$jsonContent = Get-Content -Path $tfwPath -Raw | ConvertFrom-Json
 
# Get the last entry for the session (new session)
$session = $jsonContent.VdiConnectionInfo | Select-Object -Last 1
 
# Extract data from JSON
$vdiState = $session.vdiConnectedState
$vdiVersion = $session.vdiVersionInfo
$devices = $session.devices

$vdiState.vdiMode

We need to renew our Horizon licenses in the coming months. In the past, we used Horizon for Desktop licenses. We understand that the new licenses are now called VVF for VDI. The challenge is that we are also using vSAN, and the 100 GB per core included in the VVF license is not sufficient to cover our cluster. Unfortunately, adding additional vSAN capacity through TB-based licenses is not permitted. Switching to a standard VVF/VCF license combined with Omnissa is also very expensive. Do you know of any trick or workaround to increase our licensed vSAN capacity by increasing the number of cores in a cost-effective and simple way? For example, what if we add some nested ESXi hosts to the cluster and keep them powered off—would that be a legal solution?

does someone using Windows Defender with instant clone?

before i put a ticket in, the 2503 Omnissa client isnt' installing as part of an SCCM task sequence anymore, and its causing other apps to fail - Asking if theres a suggested way to install it? Errors saying Windows Firewall needs to be running now... What is the proper way to install this now in a task sequence?

💻 EUC Blog - Deploying Horizon Cloud Next-gen Edge on Amazon WorkSpaces Core 💻 Every now and then we see a great blog that breaks down AWS-specific domain knowledge for configuring EUC by an independent site that I just have to share with the community. This Sharing for Better blog leaves nothing to the imagination and makes it easy to follow if you're setting up Omnissa Horizon on WorkSpaces Core. Thread in Slack Conversation

With the Windows OS Optimisation tool 2503 for Windows Store should Notepad and Snipping tool be added for Windows 11?

https://us.omnissa.one/event/a54b2cb4-aa9b-4825-9739-a156b0a2078b/omnissa-one?utm_ca[…]-global%E2%80%8B&utm_medium=organicsocial&utm_source=linkedin Omnissa ONE 2025 Registration opened!

Did anyone else just get a blank contract update from "prod@omnissa.com" show up in their boxes?

Anyone hitting "Failed to connect to Connection Server" after upgrading to Horizon 2503? Issue described here - https://kb.omnissa.com/s/article/6000956. The KB specifically calls out WorkSpace One being involved, but we are not using WS1 and have the same issue with the same log file entries. Omnissa says that we need a hot patch which will take 1-2 weeks to get to us. In the meantime, the only fix is for users to delete the Horizon cookies from their browser or use an incognito tab.