dcing in game despite internet being fine.

Only started happening today since downloading 7.8 that i'm dcing from games ( 4 or 5 times) at times its not connecting to games. There is also times where the game freezes - sometimes dcing me and then sometimes it goes okay again. Never had issues like this before and i have no idea as to why. My connection has been stable and anything else has run fine but no idea why its doing this and its frustrating and dissuading me frm doing ranked. Anyone experienced/ or can help?
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