I do not have a solution, but my Neo 1 lasted over 20K km without a glitch. I did get another when my first acted up, also after some 15K km and I got a free replacement, but no explanation as to what was wrong with it.
I now have a 2T and my old Neo is happily being used by someone else.
How ‘worn out’ is yours? Have you made any, even the smallest of adjustments to your setup? You’re using BLE, Ant+ or both? Which PC - if any - and did you try any other service, like the free Tacx app, running a power or slope workout?
And so on - I’m just putting forward a few questions Tacx / Garmin will probably ask you as well
I’m afraid support hasn’t improved now that they are a Garmin company…