VPN pptp 619 windows xp error

Trying to connect to the VPN and the mikrotik win xp gives me an error 619
My configuration:

[admin@MikroTik] > system routerboard print 
       routerboard: yes
             model: 951G-2HnD
     serial-number: 3E2D02BEE063
  current-firmware: 3.08
  upgrade-firmware: 3.08



[admin@MikroTik] > interface pptp-server server print 
            enabled: yes
            max-mtu: 1460
            max-mru: 1460
               mrru: disabled
     authentication: mschap2
  keepalive-timeout: 30
    default-profile: default-encryption



[admin@MikroTik] > ppp secret print 
Flags: X - disabled 
 #   NAME                          SERVICE CALLER-ID                        PASSWORD                        PROFILE                        REMOTE-ADDRESS 
 0 X user1                       pptp                                     password                         profile-VPN                   
 1   user2                   pptp                                     password                      default-encryption             192.168.99.7



[admin@MikroTik] > ppp profile print 
Flags: * - default 
 0 * name="default" use-mpls=default use-compression=default use-vj-compression=default use-encryption=default only-one=default change-tcp-mss=yes 

 1   name="profile-VPN" local-address=pool-vpn remote-address=pool-vpn use-mpls=default use-compression=default use-vj-compression=default 
     use-encryption=default only-one=default change-tcp-mss=default 

 2 * name="default-encryption" use-mpls=default use-compression=default use-vj-compression=default use-encryption=yes only-one=default change-tcp-mss=yes



[admin@MikroTik] > ip firewall filter print 
Flags: X - disabled, I - invalid, D - dynamic 
 0   ;;; default configuration
     chain=input action=accept protocol=icmp 

 1   ;;; default configuration
     chain=input action=accept connection-state=established 

 2   ;;; default configuration
     chain=input action=accept connection-state=related 

 3   chain=input action=accept connection-state=new protocol=tcp in-interface=ether1-gateway port=1723 

 4   chain=input action=accept connection-state=new protocol=gre in-interface=ether1-gateway 

 5   chain=input action=accept protocol=tcp in-interface=ether1-gateway dst-port=22 

 6   ;;; default configuration
     chain=input action=drop in-interface=ether1-gateway 

 7   ;;; default configuration
     chain=forward action=accept connection-state=established 

 8   ;;; default configuration
     chain=forward action=accept connection-state=related 

 9   ;;; default configuration
     chain=forward action=drop connection-state=invalid



[admin@MikroTik] > ip address print 
Flags: X - disabled, I - invalid, D - dynamic 
 #   ADDRESS            NETWORK         INTERFACE                                                                                                         
 0   ;;; default configuration
     192.168.99.1/27    192.168.99.0    wlan1                                                                                                             
 1 D 31.x.x.x/23   31.x.x.0     ether1-gateway

Wow
In Samsung tablet (Android) is connect.

android is not behind a NAT
windows is the nat