WMI permissions short of admin are very tricky - are you sure they are setup correctly? There are several WMI browsing tools out there - try the credentials in them remotely as a sanity check...since that's what Opserver will be doing. No special config is needed, it'll be running as the application pool account.

[bnicoldev]

Originally posted by @NickCraver in https://github.com/opserver/Opserver/issues/191#issuecomment-222235599