Training status no more available

Training status requires VO2 max values. For cycling VO2 max values a power meter is required.

You probably had running VO2 max values that were used for the training status and for some reason you don't have any recent running VO2 max values. You need at least 1-2 per week to keep the training status.

If you look at the four week VO2 max graph you should see why training status is lost: https://connect.garmin.com/modern/report/21/all/last_four_weeks 

The green values are running and the blue values are cycling.

Until may 2023 I see training status.

Vo2max I see that is not always registered in this last months and I don't know why

I never used Power Meter, only cadence speed and heart rate sensors.

In this last months not used cadence sensor, but only speed and heart rate sensors 

Your VO2 max values are green so they are all from running (or walking). None from cycling.

It is hard to see in the image if you got any new VO2 max values in the past 1-2 weeks.

You need to do some outdoor running to get new VO2 max values.

In last two weeks, I made two trainings per week, with my bicycle ( 2 or 3 Hours train per time), using heart rate and speed sensors, using edge 1030

In October I made 4  outside bike activity and swimming activities in the pool, registered with Fenix 6

None of them will give you VO2 max values. For cycling you must have a power meter. 

Swimming does not calculate VO2 max values.

That is the reason to why you lost the training status.

Solution: Run or walk outdoors or get yourself a power meter for your bike.

Ok. And why from December and may 2023, I can see training status? I made same activity ( bike outdoor with heart rate, speed and cadence sensors and swimming)

See pics

You got VO2 max values logged. They are green so not from cycling. Look at the 4 week VO2 max graph in the Training status page: https://connect.garmin.com/modern/report/-1/all/last_four_weeks

There you can see each time you got a VO2 max value logged. Check what activity you did on that day to see what it came from. The green VO2 max values come from: Running, Trail running, Walking and from your All-Day Heart rate. So, if you didn't do any of the listed activities for those days then it is calculated from your All-Day Heart rate.

Also read this page about how to get VO2 max values: What Is VO2 Max Estimate and How Does It Work?

If you had VO2 max values from cycling you would also see blue dots and a blue line like in this image:

Grazie.