latest patch 6.21 chat problem

when ever am trying to play LOL or just want to chat with friends a small window pops up and says to reconnect then automatically connects and disconnects again .... before this patch ..there was no issue like this... now i cant even open my store or buy a champion from store....pvp.net issues comes again and again in chats .... i can play the game but i cannot chat is main window..neither acess my store ...plz..help.. hope u find the right solution for me ...

thanks..