a co takhle se naucit cist? predpokladam ze kdyz jsi z mikrotiku stahoval novy balicky tak ti to napsalo hlasku:
License update required for v4 upgrades within 72 hours
Upgrading procedure for all devices:
Update the Bootloader if using a RouterBOARD
In your RouterOS v3.25 or newer, Update your RouterOS licenseUpload new RouterOS v4 packages to the router, and reboot
If you are currently running an older version of RouterOS, where license can't be upgraded to the new format, you can still upgrade, but absolutely make sure that After successful upgrade click on the "Update License" button in Winbox and make sure the new license is accepted. You will have 72 hours to do this, but it's recommended to do this immediatelly
takze staci dat system - > licence -> udate/get new key
tak me napada ze u RB112 co mam to po upgradu klice zvedlo licenci z Lvl.3 na Lvl.4 coz me potesilo

Bývalý ISP...