AOVPN can’t find user cert error 798

I have an RRAS server with separate NPS server onprem trying to configure AOVPN. I’m using public certs for NPS and RRAS and also Entra short-lived certs, root cert is installed on the domain and available to the clients. Entra replaces onprem CA and allows use of conditional access policy.
When the client attempts to connect, it connects to entra and generates a one hour cert in the user cert store. However, the connection fails and not sure where the issue is. I already checked and user cert is valid, has private key and trusts the root, has client authentication. Not much info in NPS logs, it doesn’t appear the client is actually trying to connect. How would I troubleshoot this ?

Error message on the client:
A certificate could not be found that can be used with this Extensible Authentication Protocol. (Error 798)

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u/ntuner — 2 days ago
▲ 1 r/Intune

Sample EAP xml for VPN

I’m trying to setup AOVPN with entra conditional access user tunnel and when im creating the policy it’s asking for eap xml. Can someone provide a sample, I’ve been trying various configurations and windows client will not prompt for mfa that’s in the conditional policy. I’m only trying to use user tunnel.
I’ve also tried the custom profile option and used the sample from Richard hicks but this one will error out and not deploy.

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u/ntuner — 3 days ago

Always On VPN With Entra Conditional Access without CA ?

Hello,

I'm trying to setup AOVPN from scratch as test, I don't have an internal CA but I'm trying to use Entra Conditional access (guide here) that generates short lived certs and to be able to use various MFA options within Entra for AOVPN. From my understanding this should work but I'm having troubles.

I have the following 3 servers:

AD domain DC 2016

2025 NPS server

2025 RRAS server

My questions is, can this work without having an internal CA (certificate Authority) ? I'm confused about this section below when I create the client EAP XML, where Microsoft guide says I must use the root CA and not Entra Root CA.

Do not use the sample thumbprint in the <TrustedRootCA></TrustedRootCA> section below. The TrustedRootCA must be the certificate thumbprint of the on-premises root certificate authority that issued the server-authentication certificate for RRAS and NPS servers. This must not be the cloud root certificate, nor the intermediate issuing CA certificate thumbprint.

u/ntuner — 6 days ago

Zulus V2 Scope with Avenge X

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u/ntuner — 10 days ago

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Let’s say you have a vm used as a template in hyper v, what are some options to clone it correctly so it has the vm files renamed to the new vm name? Exporting and importing a vm does not rename the vm files or cloning via admin center..

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u/ntuner — 10 days ago

Forticlient vpn vs Microsoft VPN (AOVPN)

Which vpn would you pick, the free forticlient vpn or Microsoft vpn solution for around 150 users ?

We are a Microsoft shop, M365, hybrid join devices etc. We would like to rely on entra for mfa (hello, secure key) which we use already on the laptops.
Forticlient supports entra integration which is what we were looking at using. But is Microsoft solution better being a Microsoft product and not having to worry about out installing and managing a vpn client ?
Performance wise, is one faster ? Tips, ideas appreciated. Thank you.

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u/ntuner — 12 days ago

Outlook classic taking long to open

Hello,
We decommissioned onprem exchange and moved to m365. We ran the cleanup scrips in AD and created the cname record to point to autodiscover.outlook.com.
All onprem exchange records have been removed and not showing in adsi edit anymore but outlook classic clients take very long to open 5-10min which eventually open.
We tried registry settings to skip looking for SCP records onprem but no change.

Any ideas ?

Edit: I should add deleting profile and creating a new outlook profile fixes the problem. The profile might have been setup to connect directly to onprem exchange

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Hello, I need some help with a cancelled account. I have proof it’s been cancelled but it’s not and got billed past due now.

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u/ntuner — 2 months ago