Connection Issues

Well, first off, I tried many things but I still experience DC and highpings for like 5 sec to 1 min, once more, once less. I checked my router history, repaired, installed LoL, no resolution. Everything else is working fine. Started like 2 days ago ** I know, this may belong to the support desk. Anyway, when I reconnected, meanwhile this tier 1 tower in aram was destroyed, still appearing with full health but without healthbar for the rest of the game.**

Screenshot added in the link section