Q: internet is intermittent (mifi device 4g) stop and start refresh browser... macbook pro 2013 retina 13"

I am using a mifi device 4g for internet connection and it seems to always hang on the macbook

on other devices such as a mobile or tablet it seems fine....and the connection is consistent, however on the MB it is intermittent. sometimes it works for 5 minutes or so and then it will hang and i have constantly refresh or wait for it to be activated again...

there is definatley reception as it works on my other devices...

is there an update to the wifi driver or anything i can try to rectify this issue. i read that i should turn off bluetooth. however i dont think this is the best solution as i soon will be using a bluetooth speaker, although i did try this and it really didn't make much difference...

your suggestions are valued

thank you