iPhone 6s unable to connect to internet

I'm currently staying at a hotel where the internet requires login details via the arubanetworks secure login. Every time I try to connect to the internet, a troubleshoot message pops up: "Web authentication is disabled. Please contact the administrator for assistance." No webpage is able to be loaded although the little icon shows that I'm connected to the internet. The funny thing is, I am able to connect to the internet with my other devices (iPad, Mac). I asked the hotel for assistance and it seemed that I was the only one who was having an issue so they suggested that maybe there was something wrong with my phone (my phone's not broken. I used the public internet the other day at a local Starbucks and it worked just fine.) Any of you lovely peeps know what might be the issue with this? And how might I resolve it?