@kenny... I recommended trying the connection at the lower speed because of your sync rate. For 6Meg service, the modem should sync at just over 8000Kbps. Yours is syncing at just over 6000Kbps. So either your data cable connecting the modem to the wall jack is too long, you've got a defective filter connected to the modem (which shouldn't be filtered on a stand alone DSL line anyway), or you're too far in the loop for 6Meg service. In addition to the low sync rate on the diagnostic page you posted, it looks like the signal is interleaved. That means the people who manage the "network" part of the connection have added what they call a "noise profile" to the DSL signal in an effort to make the connection more stable. They'll interleave a signal when a customer is too far from the CO/DSLAM for the speed they subscribe to in order to raise the signal to noise ratio on the line. The longer the loop, the more the DSL signal attenuates, so a faster DSL signal will break up after traveling so many feet from the CO/DSLAM to get to the modem. For 6Meg DSL, this is usually between 5500 and 6500 feet from the CO/DSLAM but I have seen some people on REALLY good lines maintain a stable 6Meg connection on loops as long as 8000 feet. It really just depends on the CO, network card at the CO, the F2 cable from the CO to the house, the NID (Network Interface Card) at the house, and the wiring from the NID to the modem.

The other thing you asked about was "What is a FAST profile?"I was referring to the network profile for your connection. There are FAST profiles and there are INTERLEAVED profiles. A FAST profile means the DSL signal you're using is stable without the network support group needing to add anything to the signal to keep it from dropping. INTERLEAVED profiles are for connections where there's either a "distance issue" or there is interference with the DSL signal that cannot be isolated or resolved. An interleaved signal may be able to accommodate more interference and travel farther but it will experience some latency from the interleave. I've found quite a few 2Wire routers that react negatively to an interleaved signal. Many times they will remain in sync with the network (steady green DSL light) but they will intermittently drop their Internet connection. I've seen this drive people totally batty because they've been unaware of the 2Wire's aversion to an interleaved signal, had the wires replaced, gone through multiple 2Wire routers, and anything else they could think of only to find the intermittence persists. Finally once the interleave was removed, the connection stopped dropping.

The other thing I wanted to mention is that I've also seen many, many complaints of unresolved intermittence where the user has had the modem drawing its power through a surge protector or power strip. I've seen people go through modems like water in some cases when the modems have drawn their power that way. I'm not sure if there's an issue with the voltage fluctuating as other devices are powered on/off, if it affects the way the current to the modem is grounded, or possibly if there is some sort of EMI/RFI that occurs when a modem draws its power from anywhere other than a standard, 2 receptacle power outlet, but I've seen way too many modems on power strips constantly drop connections then have the power strip removed, the modem connected directly to the wall outlet, and suddenly they stop dropping connections. So if you're connected to one, try removing it and see if it gets better. I hope I answered your questions and maybe in some form, actually helped. Good luck.