WiFi keeps searching and icon issue

I have a MacBook Pro (Retina, 13-inch, Mid 2014) with MacOS Sierra.

My issue is that the WiFi keeps searching indefinitely, even when I'm stably connected to my home network. My house is quite isolated so my hotspot is the only one in range.

In addition the icons don't reflect the actual signal strength (when choosing the network), and the one in the top bar is constantly animated as if during the connection phase.

I have no idea how to solve this. What can I do?

EDIT: this is specific to this device, all the other devices I own have no issues connecting. Also I want to specify that connection is not the issue, meaning that I can browse internet just fine and even use ssh as if nothing was wrong.

WiFi Diagnostic tool highlights no issues with the connection (as expected as I'm not seeing any).

I performed all the operations listed in the Apple support page, which frankly seem supremely useless, and nothing changed.

Solution 1:

If it's just the icon giving you issues, not the connection, then try removing the icon from the menu bar, restarting your machine, and then putting it back.

To remove the "Wifi Status" menu bar icon, drag it out of the menu bar while holding the command key.

Restart your machine. To put the icon back, go to System Preferences > Network > Show Wifi Status in Menu Bar.

If this doesn't work, then reset your Network interface, which will erase your previous configuration and set it back to default.