M3P timeout problems in P2MP

Hello Folks!

I did try to add IP PACKING for wireless PTMP

I have nstreme on wireless network, all standard setup, what you get just enable nstreme.

Problem is, after just some minute, the dude start complain about node down etc.
Trying to ping clients, result in timeout.
Logging in to clients, is a sluggish experience.
CPU is not high, same as allways.
Disable ip packing immediate bring all back to normal again.

It was working with RouterOS 3.10, thing start to go really wierd after RouterOS 4.10, after that release I had to disable IP PACKING or M3P.

What can be the problem ?
How do you make it work ?
Do I really need it ?

Basestation RB600:
/ip packing
add aggregated-size=1500 disabled=no interface=wlan3 packing=compress-all unpacking=
compress-all

/ip neighbor discovery
set wlan3 discover=yes

Client RB411:
/ip packing
add aggregated-size=1500 disabled=no interface=wlan1 packing=compress-all unpacking=
compress-all

/ip neighbor discovery
set wlan1 discover=yes

Regards //
// Peter Steen