Hello,
I just upgraded RouterOS from 6.10 to 6.11 on my RB450G. After the upgrade, CPU is running 100% all the time.
From the menu Tools → Profile, it shows that the ‘unclassified’ is currently using CPU up to 97.5 as you can see from the attachment.
How can I figure out what is this ‘unclassified’ that consuming my CPU?
In this situation not many on the forum will be able to help. Your best bet is to take a supout file and email it to support.
Once you grab the supout - try rebooting the router and see if problem continues.
I had this issue some time ago. Solution was to backup configuration (export, save to computer), netinstall the board and import the configuration back.
JF