MikroTik Default Password and RouterOS Login
A factory MikroTik sits at 192.168.88.1. The username is admin and the password is empty — you press Enter on a blank field. RouterOS 6.49 and later then force you to set one.
Four ways to connect
MikroTik is unusual in offering several parallel management paths: Winbox (a Windows utility that can reach the router by MAC address even when IP configuration is broken), WebFig in a browser, SSH, and a serial console on larger models. The MAC-address capability of Winbox is the reason MikroTik units are rarely truly bricked — you can usually reach one that has no working IP at all.
The blank password
Factory credentials are the username admin with no password. Not the word "password", not "admin" — an empty field. This surprises people migrating from other vendors and is the single most common reason a MikroTik login "fails": something has been typed into a field meant to be left alone.
From RouterOS 6.49 onward the router demands a password on first login and will not proceed without one. RouterOS 7 keeps that behaviour.
Default configuration versus blank
Most RouterBOARD units ship with a default configuration that sets up NAT, a DHCP server and 192.168.88.1 on the LAN bridge. Some models — particularly Cloud Core routers and certain CRS switches — ship blank, with no IP at all. On those, Winbox over MAC is the only way in until you assign an address.
Reset options
Holding the reset button during boot restores the default configuration. Holding it longer invokes Netinstall mode, which allows a complete firmware reinstall over the network — useful when RouterOS itself is damaged. Both paths return the admin account to its blank-password state on firmware old enough to permit it.
Patch discipline matters here
MikroTik hardware has been repeatedly enrolled into large botnets, almost always through unpatched RouterOS versions rather than weak passwords. Winbox on a public interface is a particular liability. Restrict management access to the LAN and keep RouterOS current.
FAQ
The username is admin and the password field is left blank. RouterOS 6.49 and newer will then require you to set a password before the session continues.
Check you are leaving the password field genuinely empty rather than typing anything into it. If the unit is second-hand, use Winbox to connect over MAC address, and if that also refuses, hold the reset button during boot.
192.168.88.1 on units that ship with the default configuration. Cloud Core routers and some CRS switches ship with no IP address at all — reach those through Winbox over MAC.