Indeed. See All of the gateways show "not connected" (offline) in TTN Console - #3 by arjanvanb. And note that https://status.thethings.network shows:
Unreliable information on NOC component
As a result of flaky data streams, the information in the NOC component may be unreliable. As a result, gateways may appear in the console as offline, while they are in fact online. Gateway traffic in the console may not work. Application traffic is not affected by this.
Posted 1 month ago. Jan 27, 2020 - 13:56 CET