Galaxy Tab 3 SM-T217S. I have been searching for days trying to find a solution of not being able to have a web page load on my tab. I reset the router, reset the tab back to factory, checked the time and date installing WiFi fixer etc etc. I have been to dozens of web pages to try to fix this and I came upon this video This fixed it for me and I figured it may help you. Basically is really as simple as changing your ip address using a static connection. My router is a Linksys E2500. Good luck!
Just to let you know I had to have wifi fixer installed as well. Tried it without it and could not open a web page.
