A little worried about this phenomenon too, latency of pool can’t be the unique factor
Got 11ms on the EU pool and 1.39% stale. I wouldn’t fear a ban for so little
Russia : 55 ms, NA : 96 ms, ASPAC : 156 ms, 17 ms on nanopool
May SSL can increase latency ?
Since EIP-1559 hit this morning I have been getting up to 40% stales mining on Hive to Ethermine. Latency only 40-48ms. I upgraded hive and reset my internet connection to no help. All of my Windows PCs with 1 card in them are getting no stales.