"Google and T-Mobile are investigating this issue and hope to have more information for you soon. We understand your concern and appreciate your patience", says the post from a T-Mo moderator.
The consumer reports from the States suggest that the Nexus One is struggling with 3G reception on T-Mobile's network, dropping down to 2G even where coverage is theoretically available.
"Tests over the weekend have often shown even older HTC-made Android phones like the G1 having full-strength 3G where the Nexus One has had less than a full signal", reports Electronista.
"We've worked closely with our Nexus One launch partners to make support available through a variety of channels", a spokesperson for Google told the BBC.
"This is a new way to purchase and support a mobile phone, and we're committed to sorting out the few kinks that do exist".