Hi,
I using mikrotik router os [v6.28] my pc. after 24 hours license key is fails. again install again 24 hours license key is fails. so any one help me on this problem.
Thank u.
Read this: http://wiki.mikrotik.com/wiki/Manual:License#License_Levels
You are using 24h limited trial version.
You need to register for the demo, or buy a license. RouterOS is not free.
https://www.mikrotik.com/client/
The message that is shown clearly explains what needs to be done.