FRITZ!Box 6840 LTE Service - Knowledge Base
The "Info" LED continuously glows red
When the "Info" LED is red, the FRITZ!Box indicates functional restrictions over a longer period of time, untypical usage behavior, or other urgent alerts. The exact cause is displayed as a message on the "Overview" page of the FRITZ!Box user interface and is displayed or is repeated until the cause is eliminated.
Fig.: Example of a message on the "Overview" page of the FRITZ!Box