High latency Issue

Technical Support
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I've been directed from the website to the forums in order to seek solution about my high latency (ms) in game.

My computer processor is Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz Mhz, 4 Core(s), 4 Logical Processors
and the graphic card is NVIDIA GetForce GTX 660

Currently the game is unplayable to me due to such high latency it actually freezes (over 2000 ms).
And I am home again. I did not forget about your request. The first step is just to do some basic troubleshooting starting with the home network and then working your way towards the Blizzard servers. You are looking for any changes when doing troubleshooting steps and/or packet loss and high latency in the connection tests. D3 is requires a real time synchronized connection unlike streaming or websites. It can be very sensitive to packet loss. I have a list that can help.

There are quite a few things you can do to troubleshoot. Try them one at a time and note the results:

-Power cycle your home network and PC. Yes, this is simple but a reboot fixes many things! https://us.battle.net/support/en/article/power-cycle-your-network-devices
-Double check that all your cables are securely plugged in. They can come loose when you least expect it. (Kids, pets, random tripping over wires)
-If you are on wireless try connecting directly to the router via eithernet cable. If that works then you know it is your wireless connection or interference with it.
-Try connecting directly to the modem instead of the router if yours is separate. If that works you know you have a router issue.
-Try running the game in selective startup mode so that all other software is disabled (note antivirus will be off). https://us.battle.net/support/en/article/shutting-down-background-applications If that works then you know some other software on your machine is causing the issue. The most common software issue is security software even if you don't think so. MS updates can play havoc sometimes as well.
-Consider updating your network card drivers and router firmware. I had to update both to fix my own DC issue.
-Do you share a connection where others are streaming or downloading things? That can sometimes cause issues.

Look for issues with the ISP going from your home to Blizzard.

- Run a tracert and pathping then post them here
https://us.battle.net/support/en/article/running-a-traceroute-and-pathping (This may take up to 10 mins so let it run)
NOTE – When the test reaches Blizzard’s servers it will show as 100% packet loss or full timeout. This is due to security masking preventing the servers from responding. This is normal.
- WinMTR will give a much better view of a gaming session than the snapshot pathping/tracert http://winmtr.net/download-winmtr/.

Check the connection going from Blizzard back to you (sometimes it takes a different route)
-Looking Glass Tool https://us.battle.net/support/en/article/looking-glass

-Some people find that a DNS flush helps for some reason https://us.battle.net/support/en/article/ip-release-renew-and-flush-dns
Marked As Solution
01/04/2016 02:08 PMPosted by MissCheetah
And I am home again. I did not forget about your request. The first step is just to do some basic troubleshooting starting with the home network and then working your way towards the Blizzard servers. You are looking for any changes when doing troubleshooting steps and/or packet loss and high latency in the connection tests. D3 is requires a real time synchronized connection unlike streaming or websites. It can be very sensitive to packet loss. I have a list that can help.

There are quite a few things you can do to troubleshoot. Try them one at a time and note the results:

-Power cycle your home network and PC. Yes, this is simple but a reboot fixes many things! https://us.battle.net/support/en/article/power-cycle-your-network-devices
-Double check that all your cables are securely plugged in. They can come loose when you least expect it. (Kids, pets, random tripping over wires)
-If you are on wireless try connecting directly to the router via eithernet cable. If that works then you know it is your wireless connection or interference with it.
-Try connecting directly to the modem instead of the router if yours is separate. If that works you know you have a router issue.
-Try running the game in selective startup mode so that all other software is disabled (note antivirus will be off). https://us.battle.net/support/en/article/shutting-down-background-applications If that works then you know some other software on your machine is causing the issue. The most common software issue is security software even if you don't think so. MS updates can play havoc sometimes as well.
-Consider updating your network card drivers and router firmware. I had to update both to fix my own DC issue.
-Do you share a connection where others are streaming or downloading things? That can sometimes cause issues.

Look for issues with the ISP going from your home to Blizzard.

- Run a tracert and pathping then post them here
https://us.battle.net/support/en/article/running-a-traceroute-and-pathping (This may take up to 10 mins so let it run)
NOTE – When the test reaches Blizzard’s servers it will show as 100% packet loss or full timeout. This is due to security masking preventing the servers from responding. This is normal.
- WinMTR will give a much better view of a gaming session than the snapshot pathping/tracert http://winmtr.net/download-winmtr/.

Check the connection going from Blizzard back to you (sometimes it takes a different route)
-Looking Glass Tool https://us.battle.net/support/en/article/looking-glass

-Some people find that a DNS flush helps for some reason https://us.battle.net/support/en/article/ip-release-renew-and-flush-dns


I did everything you mentioned and it didn't work but after reinstalling completely, the ms dropped back.

I'm going to see if it happens again and post once again if it came back because it might be a coincidence.
Thank you for working on it and posting a update. Fingers crossed you are fine. Unfortunately though, if it is one of those intermittent congestion issues on the backbone it could return when you least expect it.

One more thing that can cause "lag" like symptoms is an issue with video drivers or settings. Just one more thing to check if you need to.
Can't Unmark as a solution because here I am day later and it's lagging again.
It seems to lag at this exact time every day. I am convinced it's not from me and probably it's from the blizzard servers. Either way I tried everything and I'm kinda tired of trying to fix games instead of playing them.

Thanks anyways for your help
i am having a problem as of for the last couple of days ive been getting lag spikes. when i first starting playing this game again like 4 days ago after 2 years of no play i was getting good latency like 50ms and and it seems right after this latest patch 2.4.0 i started to get lag spikes my latency has been going from 50ms to 600ms to unplaylable. the latency bar would be green then it will hit orange then red and then it will go back to normal again for a while. i already checked my internet connection and isp and its fine. when i play others games i dont get any lag at all it only happnes with diablo 3 and i want to know why because i want to get into this game again.
Having this problem as well. This is def not a graphics card problem.
01/04/2016 02:08 PMPosted by MissCheetah
And I am home again. I did not forget about your request. The first step is just to do some basic troubleshooting starting with the home network and then working your way towards the Blizzard servers. You are looking for any changes when doing troubleshooting steps and/or packet loss and high latency in the connection tests. D3 is requires a real time synchronized connection unlike streaming or websites. It can be very sensitive to packet loss. I have a list that can help.

There are quite a few things you can do to troubleshoot. Try them one at a time and note the results:

-Power cycle your home network and PC. Yes, this is simple but a reboot fixes many things! https://us.battle.net/support/en/article/power-cycle-your-network-devices
-Double check that all your cables are securely plugged in. They can come loose when you least expect it. (Kids, pets, random tripping over wires)
-If you are on wireless try connecting directly to the router via eithernet cable. If that works then you know it is your wireless connection or interference with it.
-Try connecting directly to the modem instead of the router if yours is separate. If that works you know you have a router issue.
-Try running the game in selective startup mode so that all other software is disabled (note antivirus will be off). https://us.battle.net/support/en/article/shutting-down-background-applications If that works then you know some other software on your machine is causing the issue. The most common software issue is security software even if you don't think so. MS updates can play havoc sometimes as well.
-Consider updating your network card drivers and router firmware. I had to update both to fix my own DC issue.
-Do you share a connection where others are streaming or downloading things? That can sometimes cause issues.

Look for issues with the ISP going from your home to Blizzard.

- Run a tracert and pathping then post them here
https://us.battle.net/support/en/article/running-a-traceroute-and-pathping (This may take up to 10 mins so let it run)
NOTE – When the test reaches Blizzard’s servers it will show as 100% packet loss or full timeout. This is due to security masking preventing the servers from responding. This is normal.
- WinMTR will give a much better view of a gaming session than the snapshot pathping/tracert http://winmtr.net/download-winmtr/.

Check the connection going from Blizzard back to you (sometimes it takes a different route)
-Looking Glass Tool https://us.battle.net/support/en/article/looking-glass

-Some people find that a DNS flush helps for some reason https://us.battle.net/support/en/article/ip-release-renew-and-flush-dns


It is not solved, don't mark it solved.
01/14/2016 09:36 AMPosted by hailmary
It is not solved, don't mark it solved.


Only the Original Poster or Blizzard staff can mark something resolved. I can't and did not.
c mon blizzard wtf. fix it. its on your end.
I have the same problem. My regual ping is 170 to 180. It is playable at this rate but suddenly when i enter a fight, mostly when playing with 4 players, the ping bar turns Orange then red (in the worst cases) and then back ro green. Its really frustrating. It started to happen in the 2.4 patch. Im fine on other games. Any ideas!?
01/19/2016 10:40 PMPosted by Ackmun
I have the same problem. My regual ping is 170 to 180. It is playable at this rate but suddenly when i enter a fight, mostly when playing with 4 players, the ping bar turns Orange then red (in the worst cases) and then back ro green. Its really frustrating. It started to happen in the 2.4 patch. Im fine on other games. Any ideas!?


Have the same exact issue but on eu servers, this is only pre patch 2.4
Same issue here, after patch 2.40 i had this lag problem then the 2.40 patch comes and my lag problem seems fixed but 4 days ago start again and it is unplayable, i have always 950+ms. :S
Use WTFast. It help me a lot.
500 to 180 ms
Hi there. Latency rate shoots up to 3500++, generally around 1000+
Can't play a game for almost a week!
Games keep on freezing... although my character still moves around, everything else freezes
or loading takes a longer time
please help.
I've tired of searching solutions ...
thanks
Hi

I have come back after a 2 weeks break to play some other games just to get some achivements on HC. But now i experience the same thing.

Im on a direct fiber cable from the wall to my computer 1000/1000. I have no lag experience from ANY other games then Diablo 3.

My latency goes heywire and range from 60 - 500 up to a freeze when alot of mobs is around.
I followed all your instructions, but no improvment what so ever.

Maybe i should add that before i left for my break, i had no issues in latency at all.
It is without a doubt something on the bnet end, since i installed, like 1 week ago or so, ive been getting 1k ping and if im lucky 500. Its not my net, since i can play any other game without a problem, including old blizz games such as SC and D2. i get 100 ms on D2, CS:GO.
any solution yet?? this is bullsh.t... and blizz has yet to respond to this matter

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