[MAC] Huge client problem

HI rioters.

I come here because i'm quite upset right know. Here's my problem:

I have a quite stable connexion, but times to times, i got those strange spikes of lags, sometimes I even need to deactivate my wi-fi then connect it back. But since... the last SR update, I have to reboot my whole client in order to get back in the game... but well that's not the main problem... So, since 06/30 i had to do it twice but... when I restarted my client, i was unable to even launch it. I double-clicked the icon but nothing started... So i had, both loose stupidly, well-engaged games and been forced to re-download the whole game. A real pain in the ass....

I wonder if anybody else got the same problem? I think it comes from the client since i hadn't this problem like 1-2 weeks ago...

Thanks for hearing my annoying complains :)