setup vpn connection using nmcli - Connection activation failed: No valid secrets

I'm trying to configure an openconnect VPN connection in nmcli on a Debian 12 running SwayWM. I manage to connect to the vpn using nmcli with the --ask flag but it cannot read vpn secrets provided with the configuration file below. Any idea?

[connection]id=VPNuuid=d9133c7c-1c0e-47dc-8da1-9e52eced6385type=vpnautoconnect=falsetimestamp=1726496682[vpn]authgroup=Personelsauthtype=passwordautoconnect-flags=0certsigs-flags=0cookie-flags=2enable_csd_trojan=nogateway=vpn.grenet.frgateway-flags=2gwcert-flags=2lasthost-flags=0password-flags=0pem_passphrase_fsid=noprevent_invalid_cert=noprotocol=anyconnectresolve-flags=2stoken_source=disableduser-name=myusernamexmlconfig-flags=0service-type=org.freedesktop.NetworkManager.openconnect[vpn-secrets]#form:main:group_list=TunnelGroup_Personnels#form:main:username=myusernamepassword=mypassword

I tried nmcli con reload, systemctl restart NetworkManager. I also tried using 'passwd-file' without success.

Also journalctl logs :

[1726513110.5164]vpn[0x55c2cb4b6330,d9133c7c-1c0e-47dc-8da1-9e52eced6385,"VPN"]:secrets: failed to request VPN secrets #3: No agents were av> lines751-800/800 (END)

Duplicate unanswered posts :

• https://serverfault.com/questions/816714/how-do-i-supply-a-password-to-networkmanager-openconnect-automatically
• How to set a VPN connection in nmcli?