It has been one week that my activities GPS signal are shifted from a few hundred meters away from the real track I have done. I also realize that the time to find the GPS signal before starting an activity is significantly longer for two months ago (less than a minute before and now it can take a few minutes or I never found it).
I have run with people with also a garmin and they didn't have any GPS issues while I was having it. I regularly sync the watch. My watch has only 2.5 years.
I have a Forerunner 255S Music, I have installed the last update available: 22.24
GPS:13.00, Wifi:28.27, CIQ:5.10, BMX:19.1.2, WHR: 1.01.02, ANT/BLE/BT: 28.27, Sensor Hub: 33.13, NFC: 3.5., WLT:3.2.13
Any ideas of what can I do to solve this problem ?