Since I upgraded my avalanchego to version 1.2.1, the average response of my validator on https://avascan.info/ has fluctuated wildly between 99% to 69%. These fluctuations sometimes occur over just hours. Moreover, the sampled responses at any given time can be very different, with some being 99% and others being <=30%… I have good reason to believe the uptime is closer to 99%. Before the upgrade, the average response rate was always 99%. Moreover, I check my validator frequently using the Health API, and I always find it is running and healthy.
What is your node-id?