Had all sorts of problems pairing the new Varia RTL 510 with my Edge 1030 ( I have updated from v5, to 5.28 and now 5.33 public betas).
When first pairing, it only found the Radar. I had to remove, restart and re-pair. This time it found the Light Network first ( this took an age at Forming Light Network) it then paired the Radar.
But subsequent power ups the Edge 1030 finds the Light Network ok but the Radar is showing as '?' and does not pair so no Radar functionality. It does not matter which order I power up, or whether from standby or not. Once or twice it did find the Radar part and all connected correctly, but most times it is just the Light Network and NO RADAR - very frustrating. If I going into sensors and try and manually connect the Radar - it just sits there trying to connect but fails.
I have now disabled the Light Network - (Set Enable to Off) for that device in sensors, and now on each power up it reliably connects to Radar. So at least I now have my Radar functionality working - but why is the Light Network so over complicated and unreliable??