The internet is very slow, and at speedtest.net it gave told me my ping is 664 - then an error that it couldn't even download the test file. Pretoria East.
What sites? Could the sites you are trying to access locally hosted sites that are on the Vodacom, MTN or Telkom networks? Is the speedtest.net server you are trying to connect to hosted by an ISP that peers with MWEB?