I got similar problems in Lephalale since Friday, going from full signal to intermittent signal (1 bar max). Router says intermittently no network.
Previously got the following speeds on Mybroadband (cellphone via wifi to the router) compared to now:
Down: 0-1MBps (was >44MBps)
Up: 0MBps (was >10MBps)
Latency: >300ms (was <30ms)