Did you add the UPN as advance search attribute in the AD source ?

Thanks,

Ludovic Zammit
Product Support Engineer Principal Lead

Cell: +1.613.670.8432
Akamai Technologies - Inverse
145 Broadway
Cambridge, MA 02142
Connect with Us:         <https://community.akamai.com/>  
<http://blogs.akamai.com/>  <https://twitter.com/akamai>  
<http://www.facebook.com/AkamaiTechnologies>  
<http://www.linkedin.com/company/akamai-technologies>  
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> On Aug 8, 2025, at 10:48 AM, Dale Lloyd <it.mana...@oxcis.ac.uk> wrote:
> 
> This Message Is From an Untrusted Sender
> You have not previously corresponded with this sender.
> Yes, it is.
>  
> D
>  
> From: Zammit, Ludovic <luza...@akamai.com <mailto:luza...@akamai.com>>
> Sent: 08 August 2025 15:16
> To: packetfence-users@lists.sourceforge.net 
> <mailto:packetfence-users@lists.sourceforge.net>
> Cc: IT Manager <it.mana...@oxcis.ac.uk <mailto:it.mana...@oxcis.ac.uk>>
> Subject: Re: [PacketFence-users] Username Attribute Ignored?
>  
> Hello Dale,
>  
> Is the firstname.lastn...@domain.tld <mailto:firstname.lastn...@domain.tld> a 
> UPN ?
> 
> Thanks,
> 
> Ludovic Zammit
> Product Support Engineer Principal Lead
> <~WRD0002.jpg>
> Cell: +1.613.670.8432
> Akamai Technologies - Inverse
> 145 Broadway
> Cambridge, MA 02142
> Connect with Us:
> <~WRD0002.jpg> <https://community.akamai.com/><~WRD0002.jpg> 
> <http://blogs.akamai.com/><~WRD0002.jpg> 
> <https://urldefense.com/v3/__https://twitter.com/akamai__;!!GjvTz_vk!UcgyUglPEmJES21oMmIZU8up07Ki0jTK3Pvx4OEZRZ5tZ2IxYe0N276Ni5SEiwthtEAvB7Lt35d4zI7ec5ZOohc$><~WRD0002.jpg>
>  
> <https://urldefense.com/v3/__http://www.facebook.com/AkamaiTechnologies__;!!GjvTz_vk!UcgyUglPEmJES21oMmIZU8up07Ki0jTK3Pvx4OEZRZ5tZ2IxYe0N276Ni5SEiwthtEAvB7Lt35d4zI7eCjgLI3M$><~WRD0002.jpg>
>  
> <https://urldefense.com/v3/__http://www.linkedin.com/company/akamai-technologies__;!!GjvTz_vk!UcgyUglPEmJES21oMmIZU8up07Ki0jTK3Pvx4OEZRZ5tZ2IxYe0N276Ni5SEiwthtEAvB7Lt35d4zI7eGDBTBhM$><~WRD0002.jpg>
>  
> <https://urldefense.com/v3/__http://www.youtube.com/user/akamaitechnologies?feature=results_main__;!!GjvTz_vk!UcgyUglPEmJES21oMmIZU8up07Ki0jTK3Pvx4OEZRZ5tZ2IxYe0N276Ni5SEiwthtEAvB7Lt35d4zI7eCjDP75k$>
>  
> 
> 
> On Aug 7, 2025, at 6:11 AM, Dale Lloyd via PacketFence-users 
> <packetfence-users@lists.sourceforge.net 
> <mailto:packetfence-users@lists.sourceforge.net>> wrote:
>  
> This Message Is From an External Sender
> This message came from outside your organization.
> I have an 802.1X Wi-Fi network using an Active Directory authentication 
> source. Usernames are in the format firstname.lastn...@domain.tld 
> <mailto:firstname.lastn...@domain.tld>
>  
> If usernames (the bit before the @ sign) exceed 20 characters, the user 
> cannot log in, unless they truncate their username to 20 characters.
>  
> I have changed the Username Attribute in the authentication source from 
> sAMAccountName to UserPrincipalName, but still users cannot use their full 
> username.
>  
> I am using PacketFence 14.1.
>  
> Advice welcomed :-)
>  
> D
> _______________________________________________
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>  
> <https://urldefense.com/v3/__https:/lists.sourceforge.net/lists/listinfo/packetfence-users__;!!GjvTz_vk!SsesnwPuupaH07uQY6L7vQlK_I31L1YivpboaxwpL73LoX-IhTa9xceVeJsmeawqyD2_oDTQn6KYIOyhzTxXqNNz6TzDJyF9DPiOKQ$>
>  

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