I’d update to 3.30, do a “license update” in winbox, reboot, upgrade to 4.17, do a license update again, and it’s then ready to take 5.17. You may be able to go right to 4.17 and do a license update; I haven’t tried.
Sorry,but didn’t find e-mail of support.So may I post message here? I downloaded routeros-4.17.It has 5 directories,1 .iso file and 4 files.Which of them I have to copy in Files of router?
Alex
on the top of the forum page you can read “Notice: For support from Mikrotik staff, write to support@mikrotik.com - Mikrotik does not generally offer support on the forum, this is a user forum”