No light (Internet / PoE in, Lan 2 - 3 - 4, 5 / PoE out) lit after attempting to upgrade the mikrotik system.

Hello,

We have purchased a Mikrotik router (RB951Ui-2nD) to perform our HotSpot customer ticket creation tests.
However, we noticed that the user-manager package was not present with version 6.35.4 preinstalled,
but we were able to configure the hotspot, the users. And the LEDs (Internet / PoE in, Lan 2 - 3 - 4)
light up when you connect a cable to each of the router ports.

We then decided to upgrade the router by switching to version 66.39.2 thanks to Winbox.
The new system was downloaded without any problems and the Winbox software asked us to reboot the router.
After validating the reboot, we waited about 10 minutes and noticed that the Internet and Lan 2 LEDs did
not turn on after the restart. Then we unplug the router and wait a few minutes before plugging it back in.

Since this operation, the LEDs (Internet / PoE in, Lan 2 - 3 - 4) will no longer light when a cable is
connected to each port but the PWR and USR LEDs are lit.

Nous avons tenter de reinitialiser ce routeur (RB951Ui-2nD) en suivant les tutoriels ci-dessous, mais rien ne fonctionne:

Can you help us to reinitialize this router in another way?

Waiting for your return.
Best regards,
Sultan Gabriel BARRY
Whatsapp= 0022509581383[/img]
picture-2.jpg
picture-1.jpg