Severe packet loss when routing to Riot Games EU servers (Cox → Twelve99 / Telia)

Hi,

I’ve been experiencing heavy packet loss and failed connections when trying to reach Riot Games’ European servers (League of Legends EUW/TR).

I ran multiple traceroute and PingPlotter tests, and the issue consistently starts after Cox hands off traffic to Twelve99 (Telia) — specifically around the 62.115.x.x hops (Paris backbone). After that point, all requests time out.

Using a VPN completely fixes the problem, which suggests it’s a routing / peering issue between Cox and Telia rather than a local connection issue.

Could you please help me? I did call the support but i dont even think they they did understand my problem. Trying to fix connection issues without any file or screenshot is terrible way to do that. I did attach traceroute and Pingplotter results.

I also did contact with riot games support but after the pingplotter test, they told me that problem is high ping and packet loss values by your internet service, you should contact them. But again, live chat doesnt have enough knowledge to solve problem. They give you a call number. They guy on the phone told me that some ip adresses are banned and we cant do anything about that. But problem did start 3 week ago. I am using cox more than 2 years.