[NEW CLIENT] Stuck at 0 during champ selection

Hi, First of all, I know my wifi connection isnt the greatest, I often disconnect for around 3-4 seconds in a game and reconnect right after (i can see the "trying to reconnect" box). Altough i never have any problem with reconnecting during the game. What happens with the new client is that i just don't reconnect if it happens in champion selection.

I know it has a link with the new client, because I tried it out during the first beta weeks, and it did this problem, then switched back to the old client and it disapeared. I've tried the whole repair client thing a lot of times, without any change (even tried uninstalling and downloading again).

It's getting annoying because I can't ban or lock in the champ I want. So I get kicked out, as if I dodged, then I lose lp and also get leaverbuster... I just hope I won't lose any promotion because of this...

Also, it happened when I was with my duo partner, and when it dodges, he could see in his friend list that I was still in champion select, but he wasn't since I "dodged".

Thank you for reading, I hope you can fix this.

EDIT: just lost a ranked promo game because of the "dodge"... It's really frustrating.