LAN multiplayer severe lag and bouncing planes?

[Cabbage]

My brother and I are having a problem trying to play DCS over a lan network. Both machines are reasonably high spec i7s with 6 and 12 gig of Ram. Both run the game smoothly in single player. However when we enter a multiplayer mission that either of us is hosting (literally two planes and nothing else), the lag is violent. The planes appear to bounce along the runway when looking at each other (as in bounce 8 ft in the air when taxiing).

 

I read on here that the MSI killer network app can cause this and I have an MSI gaming laptop so I tried to shut that down but it didn't make a difference.

 

I've tried connecting via LAN and through ticking the "public game" box. If it makes a difference, neither of us can see each others game on the public list, we always have to connect via IP.

 

This lag has been happening for several patches now.

 

Any ideas? Thanks in advance.

[Slazi]

I assume you have already set the dcs data rate to the max possible? What fps are you getting in game?

[sobek]

Are you both on the same LAN? Have you tried pinging each other's machines?

[theGozr]

We do noticed a lot of lags on servers lately .

[Cabbage]

Network speed is set to LAN (if that's what you mean by data rate?). Haven't tried measuring FPS yet.

 

Ping between machines is 1ms average.

 

It's been like this for a while, we tried playing over LAN about 8 months ago and it was laggy.

[SkateZilla]

Network speed is set to LAN (if that's what you mean by data rate?). Haven't tried measuring FPS yet.

 

Ping between machines is 1ms average.

 

It's been like this for a while, we tried playing over LAN about 8 months ago and it was laggy.

 

Have you tried the lower settings 1024 etc?

[AtaliaA1]

Do U think it is just a ver. issue? So that going to a later ver. would help? like 1.2.6 one of the best LAN ver. I have used.

 

I still have a copy of 1.1.1.1 on this PC. for the heck of it.

[Cabbage]

Just joined an online aerobatics server with 15 people on and they all appeared smooth to me, completely unlike when I attempt to run a server with my brother.

[Cabbage]

Have you tried the lower settings 1024 etc?

 

Not yet, I will try again when I'm home later

[Cabbage]

Do U think it is just a ver. issue? So that going to a later ver. would help? like 1.2.6 one of the best LAN ver. I have used.

 

I still have a copy of 1.1.1.1 on this PC. for the heck of it.

 

The problem seems to have existed over several versions now.

[BitMaster]

You mentioned a network App that runs on your MSI board... can you give a bit more detail about it ? Usually those network apps only make it more complicated and less reliable, less is more here.

 

Also, what kind of Firewall and AntiVirus do you run, if at all. Those are also a culprit when it comes to LAN gaming and Ports being used that are non-standard and not preset to be allowed.

 

 

From my point of view, I would try deinstalling all FW & AV on both machines and try again.

 

 

What kind of LAN topology are you using ? Ethernet, WLAN, Switch or direct PC<->PC... etc..

 

Sometimes a stupid WLAN device can also cause this, try using cable for the tests, you may later use WLAN once it's all smooth.... just to exclude a bad WLAN environment.

 

 

Can you share FILES between the PC's ?? make some test runs with rather large files and one test with lots small ones .... and check if it all runs as it should or if you have pauses in-between the copy process...

 

Let your ping run for more than 10 minutes...and btw, your ping should be <1ms ( SMALLER ) not equal to 1ms, that would indicate a rather slow switch or bad WLAN.

 

Check back, we will get you airborne ;)

 

Bit

[SkateZilla]

I'm not sure,

But Simply Disabling/Closing the Network App does not revert the registry and traffic prioritization settings it changed back to default values.

 

At least that's the way the ASRock version was running for me, I had to restore defaults and uninstall it.

 

 

If you can connect to other servers fine, but are having problems on the local network, then it maybe a hardware(switch/router), hostname or IP Conflict.

[Cabbage]

Ok so a file transfer between the 2 PCs averaged at 12 MB/s.

 

Network is router then cable through to a different part of the house into an 8 port switch. Both machines are wired into that switch.

 

No firewall software, no AV. Router is Netgear DGN2200.

 

If it makes any difference Rise of Flight runs flawlessly over LAN.

[Revelation]

If you are willing, download a program call Wireshark and run it for a minute or two while you and your brother are running DCS. Preferably install Wireshark on the box that is hosting.

 

Once you have that, PM me and I can give you my email address. Send me the file and I can analyze the capture and let you know if I see anything.

[Frostie]

Has the connecting client tried connecting to the LAN IP instead of the server in the lobby list. Use connect by IP.

[Buckeye]

LAN multiplayer severe lag and bouncing planes?

 

Unfortunately a lot of us have seen bouncing planes on runway, warping, and severe lag since the 1.2.10 update.

 

I don't know enough about networks to pinpoint a cause or offer any solutions. I hope one of the much more intelligent fellas in here can help to get you up and running.

Edited August 12, 2014 by =Buckeye=

[Cabbage]

Has the connecting client tried connecting to the LAN IP instead of the server in the lobby list. Use connect by IP.

 

Yes mate, have tried both internet IP and LAN IP. Same result.

[Cabbage]

Ok guys its all sorted now. I updated the "Killer Network Management" app that is required to run my ethernet card (E2200) and now it all seems hunky dorey. I also disabled the apps bandwidth control.

 

Thankyou for your help!

[BitMaster]

One more proof that those "Killer Gaming LAN Cards" and all the BS is useless and marketing only.

 

Deinstall al that stuff, better not even install it first place.

 

If you REALLY want a better networking, do this:

 

- Get a real Server LAN-Card with TOE ( TCP Offload Engine ), common for all servers.

- Use Gigabit from Client-2-Switch-2-Router, despite you say I only play WAN, it does optimize

your Ping by a small amount.

- Forget about Firewalls installed on your Client, disable, deinstall, get rid off it. Useless *

- Disable WLAN on all Clients while you play or make sure the LAN card is above the WLAN in

Win-Settings. Better disabled

- Get a proper Router with a decent CPU if yours is years old.

- Get Gigabit equipment ( make sure it supports TCP v.6, some dont )

 

 

Still, all this won't fix the warping planes.... its just that your end has it all optimized playing the ball to ED ;)

 

* I say deinstall your FW if you just trust it without knowing what it does, how it does it and how you can control it. In that case, deinstall it. If you know how it works and feel safe, use it. Everything else is faked security based on assumptions rather than confidence.

Also a FW running on the machine it shall protect is a bad start. The only thing when this makes sense if that FW controls OUTBOUND...but for this it needs ANSWERS, either from a BLACK/WHITE list ( limited knowledge, each list is only a certain size ) or it has to ASK YOU WHAT TO DO, could even mean less knowledge than limited, none at all. What shall I click, ALLOW / NOT ALLOW...

If you usually don't have a clue what that thing is asking, deinstall it, the wrong approach from them to you on how to manage your security.

 

 

Bit

[xaoslaad]

I get severe rubber banding with a dedicated server on my LAN as well.

 

I am local, my friend is remote.

 

The problem is intermittent and myself and my friend and the server each have network settings to 2048. That has helped some - have been thinking we should try lowering it even more. We had mixed settings all over the place and every mission was horrible.

 

What really kills me is I can start a mission, watch the AWACS banding everywhere in the sky making a pattern that looks like a heart beat sensor. Obviously unplayable; restart mission, and it works.

 

In particular why I see lag, connected to a 1Gbps hub with gigabit Ethernet to the other system blows my mind.

 

'server' is a mid powered i7 with 16gb and bad graphics with 3d disabled and a solid state drive. it should be way more than sufficient to run a dcs server.

 

And my last comment: telling people to disable built in security (windows firewall, being a prime example) is opening them up for attacks. Maybe not so much on a desktop behind a wireless router doing NAT, but if they carry that advice over to laptops and other devices they may take to airports, hotels, coffee shops, and other places, you're teaching them to shoot themselves in the foot. A firewall, even a default configured windows firewall, provides some security.

[xaoslaad]

I saw something pretty telling on The Flying Pandas server last night.

 

We were experiencing horrible lag, bouncing, all kinds of typical DCS wonderfulness.

 

Then one of the admins hopped on the server, set the process priority to High and changed the Affinity to use just a couple cores and WOW, everything just smoothed right out.

 

I am experimenting on my own server using Process Lasso (just free version for now) to auto set DCS Multipl Priority, High IO Priority, and Affinity as avoiding hyperthread cores and set to 2 and 4 to see if it makes any lasting difference.

 

My fingers are crossed that this will provide some improvement.

[xaoslaad]

I followed this thread as well to make some BIOS settings. Interestingly after having made those (before the changes above) I noted the fan isn't running all the time on the system, like it was prior. Even though CPU usage in Task Manager is essentially the same...

 

Edit: This thread: http://forums.eagle.ru/showthread.php?t=68060

Edited March 24, 2015 by xaoslaad

[xaoslaad]

So far, not a tick of lag on our first night back to flying. I think a couple more nights with heavier missions are in order before I call it a win, but so far it has been promising.