After Multiple Tries My Ping is Still Terrible on All devices?
So about three weeks ago, my ping on League of Legends became terrible. Normally around 90, it's now around 110 and spikes to 250 and up every few seconds. I can't play. Now on Vainglory as well, a MOBA for iOS I play on my iPhone 5s, my ping spikes. I redownloaded World of Tanks for my iPhone, and I got horrible ping spikes still. I tried everything to fix it, and nothing. I called the U-Verse support line multiple times, and every time they say there are no connection issues and our speed is more than what we're paying for. I switched channels on the modem multiple times and still no fix. Last week I had them change the modem and still it isn't fixed. I'm becoming very annoyed since I've spent upwards of 100 dollars on League, and I can't even play without being handed a ban for disconnecting.
Any help or fixes are greatly appreciated