CRS125-24G-1S-RM, configure L2TP IPSec ( http://gregsowell.com/?p=4389 )
When connected one user all work fine.
When connected two or more users all connections dropped, in log:
terminating... - administrator request

P.S. If disable IPSec, then all work

[admin@MikroTik] /interface l2tp-server server> print
enabled: yes
max-mtu: 1450
max-mru: 1450
mrru: disabled
authentication: mschap2
keepalive-timeout: 30
default-profile: l2tp

[admin@MikroTik] /ip ipsec peer> print
0 address=0.0.0.0/0 passive=no port=500 auth-method=pre-shared-key secret="password" generate-policy=port-override exchange-mod send-initial-contact=yes nat-traversal=yes hash-algorithm=sha1 enc-algorithm=3des dh-group=modp1024 lifetime=1d dpd-interval=2 dpd-maximum-failures=5

[admin@MikroTik] /ip ipsec proposal> print
0 * name="default" auth-algorithms=sha1 enc-algorithms=3des,aes-256-cbc lifetime=30m pfs-group=none

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

1 name="l2tp" local-address=10.27.27.1 remote-address=l2tp_pool use-mpls=default use-compression=default use-vj-compression=default
use-encryption=yes only-one=no change-tcp-mss=yes address-list="" dns-server=10.27.27.1

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

I update ROS to 6.9, but this does not solve the problem. please help