I am tired of fighting with them seriosly. I have emailed Gavin for an answer to this and hope he will reply, cause the state of their internet they provding is unacceptable.
Even my iBurst is two times faster and 100% stable. I would recommend people to go iBurst or iBurst Wimax than Screamer Wimax any day.
I raid on iBurst( with their MTNBusiness static IP address) with latency of 300-400ms and its completely stable with no disconnects or lag spikes at all.
On Screamer, latency spikes constantly between 600ms up to 3kms every few minutes during the evening. Huge packet loss on their network is also causing disconnects in raiding in WoW. I play like first 15 minutes on Screamer and then have to switch to iBurst cause its unplayable.