Cause havn’t another version to try.
Install:
http://www.mikrotik.com/download/netinstall-2.9.40.exe
Upgrade:
http://www.mikrotik.com/download/all_packages_2.9.40.zip
Anyway the v.2.9 doesn’t work with 2 uplink interfaces.
As far as I know, it is working in different configurations.
What do you mean?
I mean, that using proper configuration for 2 uplinks within the same router, RouterOS is working fine.