PDANET 3.50 (free tethering) doesn't work anymore

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http://forums.androidcentral.com – Hello everyone, I am currently running Android version 2.3.6 (Gingerbread). My phone received a couple of notices to update the phone, but I kept ignoring it because I've been happy with Gingerbread. However, I'm now unable to tether for free using PDANET 3.50. I believe this is the most current version, and both my phone and laptop have it installed. Tethering works for the first webpage I browse, but when I attempt to browse a second site, it re-directs me to T-Mobile's webpage asking me to sign up for their tethering services ($$). Even though I get redirected, I can still conti (HowTos)