Over the last mont or so I have had periods of speend issues on my Infinity 2 line (coming up for 12th month). It will be ok for a few days, although it's still slow, but then it will disconnect constantly with 10-15 minutes of connection.
When it is working it usually runs around the 5Mbps range. After reading a number of posts on here I have used the Wholesale speed test and had consistent results of 9-10 Mbps downstrem and 9-12 Mbps Upstream. I then ran the wholesale performance test and got these results:
1. Best Effort Test: -provides background information
Download speedachieved during the test was - 10.32 Mbps For your connection, the acceptable range of speedsis 60 Mbps-76.8 Mbps . Additional Information: IP Profile for your line is - 76.8 Mbps
Upload speed achieved during the test was - 12.71Mbps Additional Information: Upstream Rate IP profile on your line is - 20 Mbps
I've had no disconnections to my knowledge, but had a powercut a week or so ago.