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williasthomas192004
New Contributor III

Registration failed Invalid Physical Address

I am facing the issue in FortiNAC guest self-registration user login connect captive portal. Can't access, and an error shows like Registration failed: Invalid Physical Address. In User&Host>Adapters, the MAC address learn and adapter are shown in a grey color. How to fix this issue.viber_image_2025-07-21_17-58-09-897.jpgScreenshot 2025-07-21 175636.png

8 REPLIES 8
AEK
SuperUser
SuperUser

Is your smartphone using random MAC address for WiFi?

If so, try disable random MAC and try again.

AEK
AEK
williasthomas192004

I do, but same result

lokildo2
New Contributor

Same, I even checked how to format my address to the american standard - why tf can't you guys just use stuff like the rest of the world? - but it gives me the same message. I'm trying to create a account to work with MTurk and it's frustrating.

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ebilcari
Staff
Staff

The MAC address seems valid, but to make sure you can check also from the CLI of FNAC as follows:

fnacl74 # exe ent
fnacl74:~$ validmac -mac 7C:A1:77:F2:80:6A

VendorCode:
Vendor OUI = 7C:A1:77
Vendor Name = Huawei
Vendor Alias =
Description =
Role =
Registration Type = Mobile Device(Mobile)
User Registration Type = null(9999)

 

Another condition that need to be meet is that the host should be online while completing the registration. Based on the shared screenshot, its adapter appears as offline. This can be caused by an integration issue with the WLC. Does the adapter appear as online after manually triggering a L2 poll of the WLC?

- Emirjon
If you have found a solution, please like and accept it to make it easily accessible for others.
AEK

If Emirjon's command doesn't give the vendor name then your definitions may not being updated properly.

https://community.fortinet.com/t5/FortiNAC-F/Technical-Tip-Invalid-Physical-Address-error-in-event-l...

AEK
AEK
AEK
SuperUser
SuperUser

Hi @ebilcari 

Actually I'm facing the same issue with 7.6.3 (new deployment), where the definitions can't update. When I try force the update i see the following error in red on the WebUI:

debug-service:Unexpected Server Response

Even tried to open all traffic from FNAC to internet but the issue persists.

For info, DNS is resolving well and we can see on FGT some successful traffic from FNAC to Fortinet.

Any idea?

AEK
AEK
ebilcari

Make sure that the details are filled, new deployments will not include the credentials:

Update 7.6-agent.PNG

Some details are shown here: Troubleshooting Tip: New vendor OUI missing from the database

- Emirjon
If you have found a solution, please like and accept it to make it easily accessible for others.
AEK

Exactly! Thanks Emirjon!

AEK
AEK
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