Is there any way to prevent a wifi network from becoming known?

Hi,
I'm on mid 2010 Macbook Pro running OS X 10.9.4 and I can't figure out a way to prevent a certain wifi network from becoming known. My college's network requires an in browser sign up every time and once the network becomes known it gives me an SSL error until I remove it from the list of known networks and refresh. Not too painful, but definitely something I'd like to fix. The only post I could find about this was from 2007, so I wanted to see if anything had changed. Any ideas?

In Network Preferences > Airport > Advanced, do the following:
Delete the network from the saved list of wireless networks
UNcheck "Remember networks this computer has joined"
Also (and this is equally important), every time you join this particular network, be sure to UNcheck "Remember this network" in the sign-on dialog.

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Is there any way to prevent a wifi network from becoming known?

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