Hi welcome to our forum. Guessing your box is in single cable mode.
Try the following
Menu – Setup – Highlight Freesat Tune.
Press the following in turn to open the hidden menu.
Red Green Yellow Blue Green Yellow Blue
Press right on Antenna Setting
Antenna Type should say Fixed Antenna
Connection type Two Cable(same).
If connection type is not as above.
Exit the menu and photpgraph your recording schedule.
Now carry out a reset to factory defaults (default password 0000).
Watch for 2 cables found message.