There are two common errors made during logging in when dialing your Dialups.US account.
First, when setting up your dialup program, you must enter your username in the form
myusername@dialups.us. Entering only myusername without
appending the @dialups.us to it will not work.
Second, be sure to include the first 's' in dialups.us.
myusername@dialup.us <--- Will not work. Notice that the 's' after dialup is missing.