There are only three (I think)small ISPs that support V92 although they are supposed to be auto backwards compatible some seem not to be. I had just the same problem as you. The one I had was also Intel and as they do not provide technical support for their modems I could not find out how to change the settings manually, although I believe it can be done. I went out and found a V90 to replace the V92 and I'm connecting again now at a minimum of 46666. V90s are getting hard to find now though, which is strange since they are not supported by the majority of ISPs.