Harmony Link
Logitech will intentionally brick all Harmony Link universal hubs next year, on March 16, 2018. The company has emailed all Harmony Link customers with the bad news.
There is nothing wrong with Harmony Link devices.

The company says a "technology certificate license" will expire next year, which they don't intend to extend.

The supposed license is crucial for Harmony Link devices, which means the company will have to shut down all products or face a legal battle with the unnamed certificate license owner.
In simpler words, Logitech has decided to give up on a product it advertised for the past few years just to cut some costs and will ship a firmware update on March 16, 2018, that will render all Harmony Link devices unusable.