Most websites nowadays (including this one FYI) supports HTTPS/SSL, just put https:// in front of it. As for your given situation, if it's really a must, you could more than likely bypass it by using a VPN service or a free proxy site, but I have to agree with fordem, for personal uses, it's best you use your own devices and not work ones. Since a smartphone isn't ideal as a workhorse (due to screen size) I'd say you'd be best using a tablet, or a 13-14" laptop, and you could use your phone a wireless hotspot, so you'd have indepepdent internet access.
Edit: Also, make sure your computer's clock (date/time) is set correctly, might be related to the issue you're facing.