SOLVED

Portal access to create new Defender for Identity instance

%3CLINGO-SUB%20id%3D%22lingo-sub-3041394%22%20slang%3D%22en-US%22%3EPortal%20access%20to%20create%20new%20Defender%20for%20Identity%20instance%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-3041394%22%20slang%3D%22en-US%22%3E%3CP%3EHi%20all%2C%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EI%20have%20been%20trying%20to%20create%20a%20new%20Defender%20for%20Identity%20instance%20for%20a%20client%2C%20by%20going%20to%20portal.atp.azure.com%2C%20but%20get%20the%20%22HTTP%20Error%20400.%20The%20size%20of%20the%20request%20headers%20is%20too%20long%22%20as%20described%20in%20this%20current%20active%20incident.%26nbsp%3B%3CA%20href%3D%22https%3A%2F%2Fhealth.atp.azure.com%2Fincidents%2F71bs265q1x6d%22%20target%3D%22_blank%22%20rel%3D%22nofollow%20noopener%20noreferrer%22%3Ehttps%3A%2F%2Fhealth.atp.azure.com%2Fincidents%2F71bs265q1x6d%3C%2FA%3E%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EIs%20there%20any%20other%20way%20to%20setup%20a%20new%20instance%2C%20or%20do%20we%20have%20to%20wait%20until%20the%20portal%20access%20is%20fixed%3F%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EThanks%2C%3C%2FP%3E%3C%2FLINGO-BODY%3E
New Contributor

Hi all,

 

I have been trying to create a new Defender for Identity instance for a client, by going to portal.atp.azure.com, but get the "HTTP Error 400. The size of the request headers is too long" as described in this current active incident. https://health.atp.azure.com/incidents/71bs265q1x6d

 

Is there any other way to setup a new instance, or do we have to wait until the portal access is fixed?

 

Thanks,

5 Replies
I have the same problem, did you manage to solve it?
best response confirmed by WingLam (New Contributor)
Solution
was able to access using the original URL domain.atp.azure.com

@viniciuscarmo many thanks Vinicius, I can access via <domain>.atp.azure.com

I wasn't asked to create an instance as in the docs, it just want straight into an identity instance.

Many thanks again.

@WingLam 

You should be able to access and create the instance in https://security.microsoft.com, in the Settings menu -> Identities (or directly at https://security.microsoft.com/settings/identities).

Thanks Martin, I do remember going into https://security.microsoft.com/settings/identities, and seeing the Defender for Identity settings in there.
I think where I got confused was that at no stage was I asked to "create an instance" (as in says in the docs), it seems the instance was automatically created.
We support Ukraine and condemn war. Push Russian government to act against war. Be brave, vocal and show your support to Ukraine. Follow the latest news HERE