unique tethering issue

[pbg225]

Hey all, i tried a couple of searches but couldnt find any thing quite like the problem ive been having....when tethering in EV my speeds are great and i love it, but without cause or reason it constantly drops back to 1x and i cant do anything its not the reception im not moving the phone and as soon as i do a soft reset im back to EV with full bars....any one know whats causing this or more importantly how to rectify it?