I am having issues in CS:GO that seem inexplicable. First off, until 2015 I never had any issues at all.
My ping is *mostly* fine. I get no packet loss or choke in the in-game net-graph. What DOES happen is as below.
1. Teleporting to a new position when I die, most of the time, it feels as if I teleport ahead of where I actually was on my end. Meaning the server (and enemy players), are seeing my location differently to me. In these circumstances I have no time to react. If they are peeking me, I will die instantly, if I am peeking them, I will die instantly, and in both scenarios my model teleports to wherever the other player saw me. This one is sort of hard to explain... it's happening to me a LOT, and other players on the server are not experiencing the same thing.
2. Probably similar to point one. I frequently experience a time-dilation effect in which I am instantly killed but told I took multiple hits. For example CS:GO will tell me I took 102 in 4 hits... but on my screen only a single shot was fired by the time I died.
3. Ping on Luxembourg servers occasionally being twice or more what it should be. I only play on the EU West servers based in Luxembourg. On a good day I ping around 25 on these servers. Some times, and totally randomly, I will ping at 50-60 for a few hours on end.
4. Rare but large lag spikes. I already called Virgin a couple of times regarding this, and it seems to be a lot better now... it was very frequent before, happening multiple times in each game. I will rubber band all over the place and weapons will switch back etc for around 2 seconds.
The biggest issue is no.1. It happens almost every game regardless of mine or the enemies ping. I ask others on the server if they have any idea what I'm talking about and they don't experience the same thing. My player model teleports significant distances and my perception of the situation is clearly totally different than the enemies. I am an experienced CS:GO player in the 2nd-to-top rank in the game, and these subtle things make an enormous difference at that level. And again, I did not experience this at all until recently.
Issues 2 and 3 are perhaps just normal for any online game. But 1 started recently (the last couple of months), and 4 started around Febuary or March.
I didnt tell you to turn the firewall off, I told you to turn off two specific parts of its "detection" features. That keep making people think they are under attack when they arent. But leave them on if it makes you feel safer, just ignore the entries in log that reference them.
Some of the issues I would be looking at LAN side latency- specifically if tehres anything running in teh background clogging up you system. Have you scanned for malware/virii recently ?
What else have you got running in the background? When you say the peaks were you downloading something is it P2P software you use? Is it still running.
Most BQM graphs will show latency spikes, depending on how busy your connection is when a ping packet hits. Id be more interested in the "jitter" your average latency is inconsistent with the yellow maximum latency ramping and falling in a fairly consistent pattern.
Can you post a tracert to the server you are using, see if there are any issues there?