Switched from VDSL2 (some other provider) to EE's fiber in December last year and initial impressions were good. Stable latency. However since the start of the year gaming has been awful, I was hoping it would go away randomly as it had come randomly but it did not.
Restarted the modem (or whatever the connection point on the wall device is) and the router. Left them powered off for 5m before starting them and it made no difference. Where I used to have 16ms-30ms on EE (previously ~20-30ms on VDSL2) I now have 16-306ms making for an incredibly frustrating experience. Now, I play mostly Heroes of the Storm and StarCraft 2 and figured it might be down to Blizzards (company behind both games) or something. But that's not the case, another household member plays Lost Ark and gets bad latency in both as well.
It's not consistently bad, but a few spikes is all you need to ruin a game.
Considering rebooting the local devices does nothing is there any other steps I can take?
