Why won't my page pull up on my iphone 4?

Sometimes when I try to pull up a page it says 10.194.0.158:8080 & it won't pull up. Like it'll say safari can't load or something like that. How do I fix this?

I've got great Wi-Fi so it can't be Internet problems by the way.

I would try going to settings>>safari>>clear cookies and data, and try again. If this doesn't work try downloading a different browser from the App Store. There a quite a few different free web browsers on the market for ios.