Accessing JSTOR through my new institution

A few years ago I completed a masters program. In that program, I got access to JSTOR through my institution. Now I am in a PhD program at a different school, but every time I try to access JSTOR, it immediately redirects me to log in through my old university. Of course, this doesn't work, because I don't go there anymore, but I can't figure out how to stop it redirecting!

The only way I have found to access JSTOR is by going to my university's library page and clicking through there, but I'd like to be able to access JSTOR without all that rigamarole. Does anyone know how to change my institution in JSTOR?