Ede Vau,

 

These errors tend to appear when OMEVV cannot retrieve iDRAC license data from OME, not from the host itself.
The failure is not occurring on the host — it is happening in the integration between OME ↔ OMEVV, and then the plugin assumes the host is “unsupported” and triggers an auto‑unmanage.

 

What I would suggest that you start with is checking the following:

 

1. Restart the OMEVV plugin services in OME
This refreshes the internal token cache and resolves the majority of similar cases.
OME → Application Settings → Plugins → OMEVV → Restart Services

 

 

2. Validate OMEVV → OME Connectivity
Check:

DNS resolution of the OME FQDN
NTP time synchronization (skew breaks tokens)
SSL certificates — ensure the OME certificate hasn’t rotated
If a proxy is involved, ensure OME/OMEVV IPs are in NO_PROXY

3. Re-register OMEVV with OME
Do not remove hosts.
Only re‑establish the plugin registration:
OMEVV → Settings → Connection & Credentials → Reconnect to OME

This fixes stale tokens.

 

 

4. Update OMEVV to a newer version
Your OMEVV version:

1.9.0.123 (very old, released before OMEVV 1.4 improvements)

Dell’s documented fixes for:

Licensing inventory retrieval
Stability issues
API failure handling

…are all in newer OMEVV builds.

 

This update alone resolves the majority of license‑inventory failures.

 

 

5. Perform a controlled inventory refresh in OME
On affected hosts:
OME → Devices → “Run Inventory”

If OME cannot fetch the iDRAC license block, this step will expose it.

 

 

Let me know what you see and if this helps.