Double Login problem ROS 2.9.51

Hi everyone,
I have ROS 2.9.51, on which is running PPTP Server and PPPOE Server,
I use freeradius FOR Users AAA,
Users can log in with the same User-Name
My Radius server is working very well, The Simultaneous-Use checking too,
In checkrad.pl I have written ‘ppp active print without-paging brief’
and I received such screen

/ppp active print without-paging brief
0 R radiustest   pptp    172.30.0.246      172.17.11.237   17m16s   MPPE128 stateless                                                                         
1 R radiustest   pptp    172.30.0.25       172.17.11.240   16m29s   MPPE128 stateless

Sometime before everything was ok, as
i received such screen

/ppp active print without-paging brief
0 R radiustest   pptp    172.30.0.246      172.17.11.237   17m16s   MPPE128 stateless                                                                         
1 R radiustest-1   pptp    172.30.0.25       172.17.11.240   16m29s   MPPE128 stateless

In that case the Simultaneous-Use was working fine and there was no double login.

Some Advise some help, it is very urgent
Thanks With the best regards
Karapet Aznavuryan