I dont think its cybersmart, rather Telkom in a whole that is slow.
A few hours ago my internet speed was still fine, doing 430kb/s on downloads and so. For the last 4 hours or so, I've been getting massive amounts of attacks, and very very slow internet speeds, on my pc, laptop, server, bro's pc, etc... all doing individual pppoe connections - so its deffinitely not the isp - is telkom.
doing a simple ping to smtp.saix.net gives me this:
Reply from 196.25.240.94: bytes=32 time=1817ms TTL=115
Reply from 196.25.240.94: bytes=32 time=1663ms TTL=115
Reply from 196.25.240.94: bytes=32 time=2075ms TTL=115
Reply from 196.25.240.94: bytes=32 time=1907ms TTL=115
Usually its 14ms !
and to smtp.isdsl.net:
Reply from 196.26.208.195: bytes=32 time=1893ms TTL=58
Reply from 196.26.208.195: bytes=32 time=1742ms TTL=58
Reply from 196.26.208.195: bytes=32 time=1932ms TTL=58
Reply from 196.26.208.195: bytes=32 time=2026ms TTL=58
some hacker community or someone within SA is hacking all their gateways, which overlods all the traffic or something. or maby a tracktor broke a fibre cable, and all routing is going through a 56k backup backbone. u never know...
hope this brings your Q into perspective
all we can do now is wait - someone will save us!