if you look in to your modem 192.168.100.1 you would see under Operation Configuration :Network Access : Allowed
Maximum Downstream Data Rate : 10240000
Maximum Upstream Data Rate : 512000
Maximum Upstream Channel Burst : 1600
Maximum Number of CPEs : 1
Modem Capability : Concatenation Enabled, Fragametation Enabled, PHS Disabled,,this is meaning you could go till 10mb but ntl cannot guarantee 6mb.I have after 6pm speeds under 1mb, so crazy.
