Hello maca88
I have Garmin Egde 1030 Plus and 2 lights:
front light Garmin VARIA UT 800, rear light Garmin VARIA RTL 515.
The Smart Bike Lights worked perfectly during the ride for every mode S(Smart), N(Network) and M(Manually).
For Smart mode, I set Day Light for both VARIA UT800 and VARIA RTL515, this worked flawlessly for 3 years,
but last week, for the first time after 4 hours of ride, the front light VARIA UT 800(on Smart mode) switched OFF, the rear light VARIA RTL515
remained swicthed ON. See the attached picture from Edge.
The same behaviour happened yesterday, during 3 hours of ride, evertything was OK, but after 4 hours, again the front light switched OFF.
So I had to set the mode M(Manually) for UT800 to have light switched ON.
Here below is the screenshot from my Garmin edge when the VARIA UT800 switched off suddenly:

Can you please check my configuration below, if there is something wrong?
1,1!NOLIT:1H]1#0,73413136::255:#3,3!UTDAY:1:7:0:0Er0,s-600!UTNIGH:1:6:0:0Es0,r0!:1:0:0:0D=1#0,73535488::16711680:#10,6!CARDAY:2:7:0:0I]-1]0Er0,s0!CARNIG:2:6:0:0I]-1]0Es0,r0!BRAKE:1:4:0:0A[-10!RDDAY:2:7:0:0Er0,s0F4,48.025374,17.214332,48.023652,17.215533,48.033353,17.235103,48.034902,17.232699,48.159031,17.041512,48.142768,17.044945,48.137499,17.131634,48.16281,17.139702,48.159293,17.044001,48.197536,17.024345,48.198452,17.051125,48.16101,17.089405,48.170476,17.080221,48.185225,17.09816,48.162971,17.139809,48.16101,17.089598!RDNIGH:2:6:0:0Es0,r0F4,48.025741,17.213387,48.023273,17.21622,48.033375,17.235961,48.034523,17.230811,48.143411,17.040825,48.17927,17.035246,48.184764,17.06254,48.137245,17.113867,48.138357,17.113151,48.153564,17.096862,48.164159,17.122107,48.135641,17.137728,48.170155,17.078655,48.176365,17.10449,48.164204,17.122099,48.153463,17.09654!:1:0:0:0D=1#7,6:Varia 800:255:16777215:-1!2,:-1,Off:0!1,High:2!1,Medium:3!1,Low:4!1,Day Flash:7!1,Night Flash:6#6,5:Varia 515:16711680:16777215:-1!2,:-1,Off:0!1,Solid:4!1,Peloton:5!1,Day Flash:7!1,Night Flash:6#0::#0:0#3!0:3!6#65535#0#B3570#4#3#0#070155,17.078655,48.176365,17.10449,48.164204,17.122099,48.153463,17.09654!:1:0:0:0D=1#7,6:Varia 800:255:16777215:-1!2,:-1,Off:0!1,High:2!1,Medium:3!1,Low:4!1,Day Flash:7!1,Night Flash:6#6,5:Varia 515:16711680:16777215:-1!2,:-1,Off:0!1,Solid:4!1,Peloton:5!1,Day Flash:7!1,Night Flash:6#0::#0:0#3!0:3!6#65535#0#B3570#4#3#0#0