Server lag, home and world spike to 3000-5000ms, when I normally average 115-200ms. I’ve done speed tests and I usually hit 700+ Mbps.
This happens in Dornagal, in M+, and in raids. I have friends in South Korea and Japan and we all get the same spikes at the same time. It seems maybe like a routing issue to the servers. It started last week.
Ping / MTR results will usually reveal where the bottleneck is occuring.
I’d suggest posting in the tech support forum.
This is the tech support forum 
This is my tracer route when sitting at 1500ms+ in Dornogal.
> tracert 103.4.115.248
Tracing route to 103.4.115.248 over a maximum of 30 hops
1 1 ms 1 ms 1 ms 192.168.68.1
2 3 ms 3 ms 3 ms softbank219188203251.bbtec.net [219.188.203.251]
3 4 ms 5 ms 4 ms softbank219188229025.bbtec.net [219.188.229.25]
4 4 ms 5 ms 4 ms 10.9.203.198
5 19 ms 50 ms 6 ms 101.203.89.89
6 * * * Request timed out.
7 * * * Request timed out.
8 46 ms 45 ms 47 ms et-0-0-0-pe01-lgpy1.as57976.net [137.221.84.75]
9 46 ms 46 ms 46 ms icn-lgpy1-ia-bons-01.as57976.net [137.221.66.97]
10 * * * Request timed out.
11 * * * Request timed out.
12 * * * Request timed out.
13 46 ms 46 ms 46 ms 103.4.115.248
It is now, you originally posted it in the Customer Support forum
Hopefully here though someone can help. Hope you get it sorted out. Good luck!
There is an undersea cable near Asia that was recently damaged. That could be contributing to the problem. I’m not sure where you ran the test to, as I don’t recognize the IP and the old server IPs Blizzard posted in the past are no longer relevant.
Same issue from Thailand - going on 2 weeks now.
1 <1 ms <1 ms <1 ms 192.168.1.1
2 * * * Request timed out.
3 6 ms 6 ms 2 ms 10.121.50.90
4 13 ms 12 ms 12 ms 10.33.45.29
5 * * * Request timed out.
6 * 13 ms * mx-ll-110.164.0-91.static.3bb [110.164.0.91]
7 10 ms 13 ms 12 ms mx-ll-110.164.0-7.static.3bb [110.164.0.7]
8 57 ms 56 ms 56 ms mx-ll-110.164.0-151.static.3bb [110.164.0.151]
9 63 ms 62 ms 63 ms unknown.telstraglobal [210.176.141.17]
10 63 ms 60 ms 62 ms i-96.hkck-core01.telstraglobal [202.84.157.38]
11 155 ms 152 ms 153 ms i-10156.sydp-core03.telstraglobal [202.84.138.89]
12 152 ms 153 ms 154 ms i-10156.sydp-core03.telstraglobal [202.84.138.89]
13 148 ms 150 ms 149 ms i-90.sydp10.telstraglobal [202.84.222.82]
14 149 ms 150 ms 149 ms unknown.telstraglobal [210.176.38.113]
15 150 ms 147 ms 149 ms ae2-br02-eqsy4.as57976 [137.221.85.49]
16 148 ms 147 ms 148 ms et-0-0-0-pe04-eqsy4.as57976 [137.221.85.73]
17 153 ms 153 ms 152 ms 137.221.66.139
18 152 ms 149 ms 150 ms 37.244.40.37
19 * * * Request timed out.
20 149 ms 152 ms 151 ms 158.115.197.121
tracert to the ip from resource monitor - last one i presume is the server ip (says blizz sydney and is what my wow.exe is connected to) and the one before it is another blizzard ip in sydney - could the timeout between them be an issue?
Sorry, but i think the problem is isolated to WoW. Why would a damaged undersea cable only affect WoW… Internet seems to work fine for all other applications
Because that cable could have been the one routing you to Blizzard. This is why a VPN might help, because it could change your route.
Or your connection could have been fine but the cable is now congested with rerouted traffic avoiding the damaged cable.
I live in Japan, playing on OCE (Frostmourne) and I have the same issues described here. I checked my connection using PingPlotter (target: 158.115.197.229) and it’s clear that the issues start once I reach the Blizzard servers in Australia.
Posting from hop 6 to end:
Tracing route to 158.115.197.229 over a maximum of 30 hops
1 <1 ms <1 ms <1 ms ATERM-A6AED4 [192.168.0.1]
2 * * * Request timed out.
3 3 ms 3 ms 3 ms sjkACS001.bb.kddi.ne.jp [27.85.212.137]
4 3 ms 2 ms 2 ms 27.80.241.109
5 2 ms 2 ms 2 ms 27.85.228.38
6 3 ms 3 ms 2 ms 210.171.225.123
7 * * * Request timed out.
8 117 ms 197 ms 118 ms [137.221.65.37]
9 115 ms 117 ms 115 ms [137.221.85.71]
10 116 ms 116 ms 116 ms 137.221.66.135
11 120 ms 118 ms 115 ms 37.244.40.45
12 * * * Request timed out.
13 116 ms 115 ms 115 ms 158.115.197.229
Hop 1, 3-6 are all in Japan. Hop 6 is the last hop in Japan, Hop 8 (137.221.65.37) is the first Blizzard server (in Sydney) and that is where the packet loss starts.
Hop 12 always times out on tracert, but PingPlotter shows that it’s 137.221.66.133 with an insane packet loss of 95%+.
I assumed this was an issue between my ISP and the Blizzard servers, however, since this happens to players all over Asia, I wonder if it is not more likely that his specific cluster of servers in Sydney is the issue?
Considering these issues began about a week ago, when Blizzard was experiencing heavy DDoS attacks, maybe some protection mechanism is catching normal players from Asia in the crossfire?
If the loss is 95%, you won’t be able to log in. Most of Blizzard’s nodes are configured to ignore homemade ICMP requests (pings) as a DDoS protection mechanism, so you don’t want to use the inflated response for troubleshooting.
I did not know that, so thanks for clearing that up!
Playing from Japan, on OCE servers, having the same latency issues. It is horrendus 
Frostmourne server, all times of day we have experienced the pockets of lag. Been happening for about 9-10 days now.
It depends on what other applications. If other servers, there may be more local servers. For wow your home server might be Oceanic, but you can be phased to a usa server, mainly for group content.
It mainlly isn’t how fast your home internet is, but the condition of the backbone that effects latency.
Same issues here in Korea. I don’t have the fancy ping and routing stuff like the other posters. VPN on/off doesn’t fix the problem. Closing other apps, adding, min configuration for WoW and computer doesn’t fix the issues. Started happening about 2 weeks ago.
Same issues here in Korea
It seems that there are multiple players exepriencing the same issues at the same time. These are just the ones that have contributed to the thread. What are the chances that Blizzars can confirm if this is temporary due to cable damage?
Same here, another player from Japan playing on OCE Frostmourne.
2 weeks of insane lag spikes. I’d run a tracert but not sure which IP address to ping.
But yeah, this is just horrible. Can’t run dungeons. I completely freeze at the beginning and the groups usually just charge ahead and kill everything. Then I D/C, and when I come back, the dungeon is fully cleared and I’m alone in the dungeon.
In the open world, I can do a few things but the lag spikes happen several times per hour and I just have to sit there for a minute or two and it comes back.
But during the spike, my ping skyrockets (like 2000ms home, 5000ms world).
Glad to know it’s not just me experiencing this. Seems so many people in both OCE and NA servers going through this problem.
And I know it’s not my 1GB fiber. I can stream movies in 4K, upload/download files, and do everything else on the internet perfectly fine without a hitch. It’s only in-game WoW for me.
holds head in frustration
Having the same issues with US to OCE here. My self and the other US players all seen to be effected at thew same time. So not just one of us but all at roughly the same moment
I have also been having this issue on and off since patch day. Large lag spikes that last for 10sec to 5 mins in which everyone freezes in place. I live in Japan and play on Barth
Still unplayable. Did you guys find any improvement over the past week?
I usually patch anywhere between 150-300+mbs but now its stuck patching at 9kbs (yes, kilobytes). No idea why. Finally gave up and unsubbed.
Pretty sure the servers in Sydney are the issue, but seems we shall never know.