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Using pingplotter to check your latency and packet loss

packet loss lag latency

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wasaabi #1 Posted 26 January 2019 - 01:19 PM

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You are playing World of Tanks and you notice your network indicator in game is flashing red, or you disconnect in the middle of a battle, why is this?


The most likely issue is lag, the technical name is packet loss.  Firstly some definitions:


Latency - the time it takes for a network packet to reach the destination address and return to the sender.  The minimum theoretical latency for a connection across the internet is based on the distance and the speed of light.  Latency will increase if there are problems in the transmission medium or errors in the switching and routing.  Latency is measured in milliseconds.


Packet loss - Network components will drop network packets when they are overloaded, meaning they will not sent the packets to the next hop in the route.  The first packets to be dropped are those with the lowest priority.  This is the prime cause of packet loss or lag.  Packet loss is expressed as a percentage, so when 100% of packets are being dropped then your connection to the endpoint  will cease if it continues for a few seconds.


When you connect to a location on the internet your Internet Service Provider (ISP) sends your traffic across their network and at some point they have to connect to one or more other carriers networks to reach the destination, this is known as the route.  Each hop in the route is where the traffic leaves one network address space to get to another and the change in network is managed by a router.  Routing decisions are typically done automatically based on optimising the number of network hops, however this can also be affected by the commercial agreements your ISP has with the other carriers.  ISPs that have a direct commercial agreement or relationship with an international carrier typically get higher priority and therefore are less likely to be affected by packet loss, at least up to the point that the international carrier hands off to the local ISP of the destination address.   Conversely ISPs that have no commercial agreement or pay the lowest rates will therefore get the lowest priority and be the first to be dropped.


So, what can you do?  Before you make any decisions you need to see where the issue might be.  For this I use a tool called pingplotter that has a free version that can be downloaded from https://www.pingplotter.com/products/free.html. With this installed use the following name for the HK server wotasia2.login.wargaming.net, or wotasia3.login.wargaming.net for the ANZ server.


When you have it installed and running against the target location you will get a screen similar to this:



If you have latency on the first line (your router) that is above a few ms or packet loss then restart your router, as this is showing it is overloaded.


If packet loss on a network node that is at 100% is showing this is not necessarily a sign of actual traffic packet loss, it is most likely that the router is configured to ignore ICMP packets which is what ping uses.


If there is a reasonable amount of packet loss however on any hop up to the last one then contact your ISP with the information, you will most likely have to escalate past the first line of support as they work of scripted answers.  Restarting your router may also have an effect here is it may allow a new route to be selected in some circumstances.


If the packet loss is happening at the last hop, this is WG's ISP and you should raise a ticket with Customer Support with your evidence.


If none of the hops are showing packet loss or abnormal latency then the issue is in game, and again you should raise a ticket with Customer Support with your evidence.


For further reading there are some knowledge articles on the Customer Support site as following:

https://asia.wargaming.net/support/en/products/wot/article/21834/ - How to report a network latency issue

https://asia.wargaming.net/support/en/products/wot/article/21775/ - I am having frequent lags and disconnection while playing the game, what to do?

https://asia.wargaming.net/support/en/products/wot/article/21777/ - What is a ping plotter file? How do I send one?




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Twit_ #2 Posted 26 January 2019 - 01:37 PM


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"Have you tried turning it off and on again?" :D

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Muds_Revenge #3 Posted 06 February 2019 - 03:42 PM


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What the hell, this looks like witchcraft to me.

I just want to log in and play some tanks, yeah I got 120-200 ping to Singapore, now I get 300 ping and HUGE lag stutters IN BATTLES on a good day (when school is in session) and just tried now school is out and getting 350-400 ping IN BATTLE.


French tyre tanks completely unplayable, all game unplayable.

Let me know when you fix it.



Also tagged with packet loss, lag, latency

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