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Windows Services Template (SAM) shows could not connect for WMI access

Hi All,

We are in a different situation. We have been using Windows Generic services template on all windows servers. But, some of the servers are failing with the below error, when tested against the components.

The error is: "Test failed with "Unknown" status on <ServerName>. Unable to connect to <IpAddress> for WMI access".

When checked with Server team, they had confirmed that all the servers has the same admin privileges for the account being used to connect through WMI.

Because of this the server shows the status of the server as "One or more application monitors is in Unknown state."

Hence, I would like to know what could be the reason, when the same account being used for all the windows servers, with same admin privileges. Where to check?

We need to fix the issue asap.

Thanks,

Naren.

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mesverrum

Use the Microsoft WBEMTest tool to test and see what you get when you try to connect to the server via WMI.

Testing WMI Connectivity - SolarWinds Worldwide, LLC. Help and Support

Beyond confirming if there really is a problem with WMI, you should just troubleshoot it as per MS docs, WMI Troubleshooting (Windows)

If WMI tests fine it would probably indicate a problem with your polling engine and you may need to open a ticket with support.

uniswtc

Hi mesverrum,

Thank you for the details. I did run the wbemtest and got the Access Denied when I rant the tool from Solarwinds App Server. I tested the same for another server, where we did not see any errors, it has shown the details when clicked on Enum Classes.

Does it mean, the admin access to the Solarwinds admin account (which is being used to connect to the windows servers being monitored) differently for domain controllers? The one which I had tested is a domain controller.

mesverrum

Hard for me to speculate, the specific quirks of Windows Domain account permissions have always been a little out of my wheel house (network engineer before I took up this career of Solarwinds trainer). In this case you do have a bit of a smoking gun at least that there is something different between how that account is being treated by your servers, i'd spot check the group memberships and maybe ask about the GPO's in effect in the different areas to be sure that they actually match up between the box that works and the box that doesn't. All servers are members of the same domain I'm assuming? Cross domain trust has occasionally been a sticking point at places where I've worked.

I like using WBEMtest to test these things out because it keeps the Windows guys from blowing me off with any "everything is fine, your tool just doesn't work" nonsense.

FormerMember

Have you run winrm quickconfig on the server?

If the account is a local administrator on the remote server, and if so, are you able to login to the remote server and manage services?

If the account is not an a local administrator you will have to grant permissions to the service manager for standard services and any non-standard services individually. See: How to create a non-administrator user for SAM polling - SolarWinds Worldwide, LLC. Help and Support for details. The account requires specific privileges on the Win32_Services object and the article above shows how to do it.

If that fails, try changing the polling method from WMI to RPC in the monitor template.

leigham_martin

Hello,

The servers that SolarWinds are failing to connect to, are they all DC's by any chance?

Regards,

leigham_martin

Hello,

Sorry slightly confused, you say you dont use WMI at all due to the weight, but then the error message your getting relates to WMI?

Do you guys work for the same company?

Has all your SNMP config been done on all your servers, when you test the SNMP credentials in SAM does it come back ok?

What size is your environment? We run WMI across the estate of around 100-150 physical servers and 350-400 vm's and we dont have any issues with weighting or network traffic, its busy yeah. but its ok.

Do you have an additional poller or is everything being done via 1 single Orion server?

If you are using a second poller you wouldn't setup the monitoring on that site, you would do it from your master install and just select the additional poller to do the work for you.

Are your servers that are failing on a domain or are they local workgroup (DMZ env)? Are they behind firewalls or are they all on the same network?

Thanks

bijuk

Please, Check the Node has Forward and Reverse DNS Configured Correctly.