With Magento 2 it is possible to disable the maintenance mode for only a certain IP. Disabling the Magento 2 maintenance mode for your IP lets you browse the frontend and admin area as normal. All other visitors will still get the maintenance mode screen.

Run this from the Magento 2 root directory to disable maintenance mode for your IP:

Deactive your IP again:

Disable maintenance mode for certain IP
You want or need help implementing this solution? Maybe you did not find what you were looking for? Contact me and I will assist you with whatever Magento problem troubles you!