Blur Busters Forums

I'm gonna try to keep this as short as i can. So i have been doing a lot of testing lately and also watching what my console spits out when things go crazy in game, you know bullets disappearing, enemies moving unnatural etc. It seems that whenever i have an issue this thing pops up in console in groups by 2:

"CAnimGraphNetworkedVariables::UpdateHistoryElementFromNetworkData( 93137 ) Rewinding time on animgraph interpolation history entries for entity 663 "csgo_viewmodel". 1455.265625 < 1455.328125"

I would like you guys to tell me if you also get this stuff in console, there are more but this particular message is sent when you can't move your mouse good and enemy has weird movement.

I also find that it's somehow related to the MTU values of internet connection. I have been suspecting this for a long while but people seem to disagree without giving any reason. It would really help if there was anyone here with MTU 1500. In order to easily check for MTU values i use a small program called mturoute, so i don't start manually pinging ips etc. You can get this from https://download.elifulkerson.com//file ... uroute.exe

The usage for the program is pretty simple just open cmd and change to dir where you downloaded mturoute.exe and insert:
mturoute.exe -t 1.1.1.1

Funny that i was watching random videos on youtube about pros playing CS2 from home and i found this one video where i can see b1t`s console and i also seen the same error. Please do not use a 4G connection, i know almost all are 1500MTU but with the instability they have it's not a proper test.

HERE YOU GO

Very well, it seems you have a good MTU for this, check your console when you die weird or enemies moving unnatural etc and ur mouse gets like weird, do you see that error i posted before? It usually comes in group of 2.

Nothing to do with MTU, because maxroutable in CS2 is 1200, so literally any internet channel with any auth (plain eth, PPPoE, various VPNs etc) is suitable.

I thought so too. The min MTU of Valve servers is 1300 i also got it confirmed by a Valve network admin, he also said that it should be OK even if you have a different MTU but from what i can see right now, it's not . I am currently speaking with my ISP trying to get the "routes" mtu to 1500 so i can confirm this. For now i can tell you that if router is gives 1500 and routes MTU is 1478 i see much more messages regarding "rewinding time" so there's that.

This was the result for me

kvix9r wrote: ↑

02 Nov 2023, 06:06

This was the result for me
MTURoute.jpg

LOL! Man yours is really bad. You got what we call fragmentation and in your case it's double because one route gives 1452 the other one is 1456. It would be pretty much OK to have first ip at 1500 and the rest till the last one 1452 but instead you have very weird routes mtu. Are you using your own router behind ISPs without bridge mode?

You should really call your ISP and complain about packet fragmentation... this is unacceptable in 2023 wtf.

Thanks, yes I've noticed that too. But other than that everything else seems fine or at least in my perception.

#1 and #2 are my own routers. I am not sure what #3 is?

#1 is a router with openwrt, I should be able to configure it to use MTU 1452
#2 is a fritzbox connected with VDSL2 WAN and I am using it for Wifi. Not sure if MTU is configurable, I think they have an automatic way to deal with fragmentation.

Also what is "Speed optimization is enabled."?

I've set it up to 1452, new result:

kvix9r wrote: ↑

02 Nov 2023, 12:47

Thanks, yes I've noticed that too. But other than that everything else seems fine or at least in my perception.

#1 and #2 are my own routers. I am not sure what #3 is?

#1 is a router with openwrt, I should be able to configure it to use MTU 1452
#2 is a fritzbox connected with VDSL2 WAN and I am using it for Wifi. Not sure if MTU is configurable, I think they have an automatic way to deal with fragmentation.

Also what is "Speed optimization is enabled."?

I've set it up to 1452, new result:

MTURoute_after.jpg

Ok looks better now. Do you have NAT enabled on both routers? Speed optimization is just a feature of mturoute.exe. I am looking for people with 1500 MTU from start to bottom just to check if they also see the "Rewinding time" message in console.

I think NAT is enabled on both routers. Also I've checked for "Rewinding time"-messages after one game, but have not found any yet.