Mine went to pot in the h8 servers when Comcast took over my local cable company.

All other servers seem normal. Had a change of provider lately?
Also, see page 19 of the Server Settings thread (sorry, don't know how to live quote another post in another thread here) where CB put a link to a Ping Plotter that you can download and run. Take a screen of what you find and maybe pm CB - he offered help then so maybe the offer still stands. Hope this helps you a little.