Samsung Galaxy Mini Cannot Access My Router Page

So I was having problems staying connected to the wifi on my samsung galaxy mini. Many fixes for other models in the galaxy series, limited fixes for the 'mini' version. Long story short, I was told to edit the DHCP lease time in my router settings.There I bumped into another problem.No mather what I tried there was no way of accessing the page. Weird thing is I remember having logged in on it before.Usually you just have to give in the standard gateway which should be 192.168.0.1 in my case. I checked it using ipconfig in cmd and my presumption was confirmed.Then I tried resetting the router to set back any settings that might've accidently been changed, in the hope that it would also reset the standard gateway and no succes.Now my knowledge about networking is verry limited.