If you are experiencing random connection speeds to us, most likely it is a problem with the telephone lines, your modem, or premise wiring. There may not be much you can do. The above paragraphs should explain plenty in regards to connection speeds. Your connection to us may very well differ from your connection to another ISP, just like calling to China is different from calling to England. You may experience different performance levels.
Weather conditions can affect line performance.
Your telephone company may be doing work on some line or switch between your place and our place that could affect your line conditions favorably or unfavorably. The basic information that we are trying to convey is that on our end, everything is set up to receive calls on the specified lines at the posted kbps. If you dial into a 33.6 line, then you are attempting to connect to our 33.6 port. Whether you get a 33.6 connection is entirely determined by the factors discussed in the above articles.