Getting more consistent Fix

I have tried combination GPS+GLONASS+SBAS.
Then I found this message - Slow RTKfix (AR validation ratio) - #5 by egor.fedorov - and turned on GALILEO and QZSS (I am in Japan, so I thought it will be reasonable). After that performance seemed more consistent, maybe just placebo. Well, at least it did not become worse. I was struggling with GLONASS AR mode + NTRIP bug, so there is no time left to play around with GNSS selection. I’ll try to follow your advice tomorrow and see if there are any improvements.