I play bfbc2 and recently my adsl24 connection speeds have dropped from 7mb to less than 1mb particularly in the evenings. so i am in the hunt for a gaming isp who will guarentee low latency for my games.
Internet speeds will always drop in the evening, kids home from school, people home from work all going online although your drop seems excessive. Have you had BT check the phone line in case there is a fault.
I appreciate the fact that usage will increase in the evening but I think that even the most sceptical would accept that the latest speed test returned a miserable 0.6mb download. You need to bear in mind that for three years adsl24 had provided me with a solid connection of around 5/6mb at night and 7+ at day time. BT have checked my line to avail and my attenuation is sitting at a very low 5.5, so there is no reason for this. adsl changed their wholesaler from entanet to murphx in feb and this is the time that connections went down