Failure(s) with available Windows credentials from the instance

[sukran]

@Ashutosh Munot  , @doug.schulze 

We have two devices build with 2019 OS and both devices were opened firewall , both are same configuration

One device able to discovery and another one isn'tdiscovering properly ( Failure(s) with available Windows credentials from the instance.</error><error>The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)

I can able to take remote access through mid server , is this any port needs to open for firewall or how to check this

[robertgeen]

Sukran,

This typically is due to a) not having an account mapped to the local admin group or b) not being able to get through a firewall. WMI uses randomized ports which makes it difficult to open up the firewall for it which is why we usually place MID servers on the other end.

https://hi.service-now.com/kb_view.do?sysparm_article=KB0564282

If you look in that article there are some commands you can run to do a WMI test and if you search the community site you will find some articles from Doug on the best way to troubleshoot. RDPing into a box from your MID server does not properly check your access to a server.

[Ashutosh Munot1]

Hi,

gwmi will give you a clear picture of this. 

Also check where the packet is getting drop. First point for credentials validation is port 135 and then all other high ports.

Thanks,
Ashutosh