Greetings!
I am hoping to get some help / resolution to an issue I’m having for months now.
Some web search reveals it’s a provider issue, but judging by the IP ranges, Blizzard is a customer and hence you likely have better handle on them.
I initially noticed the issue with Heroes of the Storm, which seems to have a 200ms connection timeout (I repeated the route and it is 180ms, assuming the odd slower and a round configuration) - a relatively new thing on their end, used to work with 300ms (cross-region). Hence, apart from the odd match, it is entirely dysfunctional now. Basically 30 minutes ago I was about to uninstall everything Blizzard, spending 15 minutes trying to even connect to a match. (First match was borderline okay with 3 disconnects, right before.)
That said, I noticed the same issue in Remix. Could be timeframe based or server based, but occasionally - mostly evenings and weekends - some dungeons would lag like hell. Notably, only one dungeon, and then it was fine. So I feel validated to try and message you here.
I managed to snatch some IPs using resource monitor.
04 9 ms 8 ms 9 ms catv-89-133-5-121.catv.fixed.vodafone.hu [89.133.5.121]
05 10 ms 14 ms 11 ms bpt-b6-link.ip.twelve99.net [62.115.44.66]
06 17 ms 14 ms 16 ms win-bb2-link.ip.twelve99.net [62.115.138.204]
07 25 ms 22 ms 25 ms ffm-bb2-link.ip.twelve99.net [62.115.138.22]
08 35 ms 33 ms 35 ms prs-bb2-link.ip.twelve99.net [62.115.122.138]
09 43 ms 41 ms 41 ms ldn-bb2-link.ip.twelve99.net [62.115.133.238]
10 109 ms 111 ms 109 ms nyk-bb1-link.ip.twelve99.net [62.115.112.244]
11 * 128 ms * nyk-bb5-link.ip.twelve99.net [62.115.137.158]
12 129 ms * 127 ms chi-bb1-link.ip.twelve99.net [62.115.139.33]
13 125 ms 126 ms 124 ms chi-b23-link.ip.twelve99.net [62.115.126.45]
14 126 ms 125 ms 125 ms blizzard-ic-348622.ip.twelve99-cust.net [62.115.178.249]
15 * * * Request timed out.
16 * * * Request timed out.
17 185 ms 182 ms 181 ms et-0-0-0-pe02-swlv10.as57976.net [137.221.83.83]
18 175 ms 172 ms 172 ms las-swlv10-ia-bons-02.as57976.net [137.221.66.19]
19 172 ms 173 ms 173 ms 137.221.105.29
20 185 ms 178 ms 178 ms 137.221.105.136
I hope it helps. I would absolutely appreciate some feedback whether this is known, will be fixed, or what to expect. Ongoing for three months.
Thank you!