[SOLVED] Cannot connect to RB5009 V7.16

RouterOS Beginner Basics
1

After a configuration reset with no default configuration I am not able to connect to it anymore.

I do know that RB5009 has a default admin password printed on its back and it is not the “usual” empty password.

I have been running successfully WinBox until now, but what is happening now is that it won’t let me in with a “ERR: Could not connect. Mac connect syn timeout”.

I have also tried the reset button for both “backup router boot” (<3 sec) and “reset config” (flashing led).

No way to login, neither with printed password nor with empty one .
Now what? Any hint?

2

Have you tried/are you familiair with netinstall?
https://help.mikrotik.com/docs/display/ROS/Netinstall

3

Nope. Is this the one and only option left?

4

I have my PC (and a bunch of other devices) linked to another Mikrotik switch, where also the RB5009 is attached.

Is there any risk I netinstall the wrong device? Or shall I run netinstall on a PC directly linked to the RB5009?

5

You can’t netinstall the wrong device, device has to be put in netinstall mode for that.

However I’d recommned you to do direct connections … netinstall is a pretty fragile process and you don’t want other traffic (possibly triggering dropped frames in ethernet network) to mess with the process.

6

Netinstall is not easy. But in the end it worked out.