permission denied -455

[BusinessUser]

Permission denied when using ssl user to log in fortigate firewall.

What does -455 mean by the way?

[Christian_89]

What exactly do you want to do?
Give me some details what exactly you want to do or your idea is?

[BusinessUser]

I just want to have admin login into firewall.

When I go in through the WAN interface and login it gets permission denied.

I try to login using SSL VPN forticlient, it gets permission denied -455 error.

[Christian_89]

Have you set up trusted host under administrators?
Have you enabled Https on the WAN interface?
Have you configured Local in Police?

[msanjaypadma]

Hi BusinessUser,

Are you getting this error when you are trying to connect SSLVPN ?

Could you please share below command output and error screenshot to check further. 

show sys interface <interfacename>
show vpn ssl settings

Specific user public ip address and please confirm is this user configured locally or through remote server?

Run below SSL VPN Debug commands and share the output:
Putty1 :
# diag vpn ssl debug-filter src-addr4 x.x.x.x <----- Public IP of <user>.
# diag debug application sslvpn -1
# diag debug console timestamp enable
# diag de en