Нова версия на Mikrotik. Можете да си я свалите от тук.
http://mikrotik-bg.com/files/routeros-all-5.4.torrent
Промени в 5.4 (2011-May-27 13:18):
*) webfig - do not try to open many windows
if first open was blocked by browser;
*) RB4xx ether1 port flapping fixed;