we have upgrade our Main GW to 2.9.20 and i worked ok for 24 H but today it stop responding on http sites like Google (werrry slow) and Mikrotik.com did not show up at all:-).but Mikrotik.lv worked... but when upgrading to 2.9.21 then everting start working again....
.We tryed to reboot the router before the upgrade but no diffrent.
//Rickard