S.P.
See if your school district has an alternative phone-in option.
And/or . . . .
stop refreshing constantly.
Just refresh every 5 minutes, or every 10 minutes.
Either you'll HIT at the right moment, or you won't.
But at least you won't keep sitting there.
Is there some way to move yourself up the substitute pool status list?
For example, having a preference code?
Also, is your connection a modem?
Or faster?
You might need a faster connection.
Good luck.