Crashing in Champion Select

This is my first post here, if its in the wrong section sorry in advance. So since the pre-season update I have had a lot more technical problems. The last 2 times I joined a queue I would enter as normal. The first time it crashed as i selected by champ, the 2cd time(5 min wait after the 1st time even though the client said there was an error) it froze at the ban screen(kicked again for 30 min). Its not just today as I have lost a couple ranked games now by just never being connected. I know its not on my end because my wireless hasn't looked any different in months. Once games start I usually have a steady connection throughout, but the initial selection screen is the part that I'm having trouble with.

Any help would by greatly appreciated.