In our net, we are using RB411+R52 on client side. In last shipment we received from our vendor are RB411 with v3.25 RouterOS. We can not use it thru breaked ssh tunelling function (http://forum.mikrotik.com/viewtopic.php?f=2&t=33603). We tried downgrade to v3.13 (v3.20 and v3.22), but after it RB411 lost licence key and put itself to 24h demo mode.
It looks like problem with "New 8 symbol SoftID".
How we should do downgrade v3.25 to v3.13 ?