My typical graph would look like this:
Very high maximum latencies, often resulting in some degree of packet loss.
This could be occasionally felt in online games like CSGO as a brief "lag spike" - only impacting the game for a second or less, but it makes the game very hard to play competitive games.
I've been using the SH3 in modem mode.
I tried a few things yesterday;
I noticed when pinging the router over LAN the response times were very erratic; quite often as high as 80ms.
What interested me was that these high ping spikes often coincided with ping spikes on the wan side (which often varied anywhere from 100-250ms).
It seems to me that something in the router/modem is periodically slow at responding to pings and perhaps even passing packets?
All of these things were true while the router was connected in modem mode to my ASUS Router and either my Macbook Pro or Alienware laptops directly.
What I found interesting was that running the SH3 in router mode improves the situation - slightly;
Some people might be quick to blame my equipment, but as mentioned I tested several devices on the other side of the SH3 in modem mode, and besides, my ASUS router had no issues when plugged into my previous Hyperoptic connection;
From the suggestions of some other users on the Virgin Forums, I've requested a SH2AC to see if that's any better.