If the trip odo and clock reset one way or the other the voltage is sagging too low when starting.
Usually that's the battery. Either not fully charged or it no longer has the capacity and drops voltage under starting load. You wouldn't be the 1st to have a new battery die. Cold weather slows the battery chemical reaction and increases starting load so an iffy battery can cause the reset but work in warmer weather. Another possibility is a corrosion bad crimp lug or crack in the battery. It heats up and opens under staring load and can heal itself when it cools to cause trouble again.
Hitchin? So you have the HISS security system. US spec (No HISS) quiescent load is 2.5ma. I don't know what the HISS drain adds to that.
Since you're new to this bike be aware it has VERY few minutes of reserve before you have a no start.
Wiring diagram
LINK
A shot of plastic safe contact cleaner in the starter switch couldn't hurt in the mean time.
There's a set of normally closed contacts that kills the headlights (not the gauge cluster) when starting and the normally open set of contacts that runs the starter solenoid.