What you're observing seems to be perfectly normal with Cox's "improvement". Email speeds vary- from barely acceptable at best to paralyzingly slow and connection errors. Complaining too much may prompt well-meaning forum moderators to dispatch you on cache and cookies clearing missions that will most likely have a negligible effect on webmail speeds. I tend to have an easier time late at night when web traffic is down. I experience connection errors on a very regular basis and am resigned to accepting them as normal.