Sorry guys... been out of the country for 2 days. Not called Ziggo either... couldn't be bothered having seen your posts.
Anyway, update my end... I'm actually posting this from home believe it or not! That doesn't mean that it's all ok though
Looking at your experiences in 5051 mine are EXACTLY the same. DL speed very good, in excess of 12000kbps and I even manage a measurement of 4000kbps UL but then it drops again to 4kbps!
Hopefully we're getting close to a solution though.
Gonna be offline for a week now so I'll get back to you on status in a while. Good luck complaining.