Also been having connectivity issues and had been getting 6-20 second lags, then 90k'd, multiple times a night (Hawaii time). At first I checked with my internet provider and will be getting my modem replaced (I'm directly connected via ethernet to my router) so we'll see if it does the trick.
I've been noticing lately that there have been more frequent careless mistakes on SE's part, resulting in weekly (sometimes bi weekly) maintenance, and there being more problems listed after maintenance performed. Makes me wonder if their dev team is not doing so good or they let go a bunch of people and are now understaffed, where minor and major unchecked problems slip through.

Note that I barely had any connectivity problems after 3.0 dropped and the problems started after the 7/27 maintenance.