Need advice here ..

I have signed up for Ermine beta upgrade, then I tried to update through PE.

I am watching closely the download progress, it seems to keep restarting .. at one time the download progress already 8% then it went back and started from 0% again .. the other time it reached 27% but then it started from 0% again ..

Now, have been waiting for 1 hours, still looping .. the progress indicator shows 4% ..

Is that normal? Seems very long .. I read somewhere it should be very fast ..