2 Players On One Connection (CSS)

demon8991 · 21 Jun 2008 at 18:16

Both of us can play fine on our own but when the other one joins the game our pings go off the scale and we lag out. Is there a setting that is doing this or something.

We both have Vista Ultimate.

MikeHunt79 · 21 Jun 2008 at 18:23

I've done this in the past and it was fine. XP was used tho.

Kreeeee · 21 Jun 2008 at 18:44

If you're both using the same port use this in your firewall rule, adjusting it as necessary:

iptables -t nat -I PREROUTING -p udp -d 9.235.128.20 --dport 63002 -j DNAT --to-destination 192.168.1.2:6112
iptables -t nat -I POSTROUTING -p udp -s 192.168.1.2 --sport 6112 -j SNAT --to-source 9.235.128.20:63002

iptables -t nat -I PREROUTING -p udp -d 9.235.128.20 --dport 63003 -j DNAT --to-destination 192.168.1.11:6112
iptables -t nat -I POSTROUTING -p udp -s 192.168.1.11 --sport 6112 -j SNAT --to-source 9.235.128.20:63003

demon8991 · 21 Jun 2008 at 18:46

Sorry to be a dummy but how do i go about doing that?

HangTime · 28 Jun 2008 at 12:01

How much upload speed do you have? If you are sending a lot of packets to the server then you will possibly need more than 256kbit.

cplhardnut · 28 Jun 2008 at 14:08

hi I also have the exact same problem, however on some occasions we are able to play css at the same time its weird. Also I upgraded from 2mb vm bb to 10mb we still get the same problem, my router is pretty descent (dlink dir 655) so I done think its that. Any ideas how I fix this issue its been a problem for a long time

cplhardnut · 28 Jun 2008 at 21:08

anyone ?

russ0r · 29 Jun 2008 at 05:06

Kreeeee said:
If you're both using the same port use this in your firewall rule, adjusting it as necessary:

iptables -t nat -I PREROUTING -p udp -d 9.235.128.20 --dport 63002 -j DNAT --to-destination 192.168.1.2:6112
iptables -t nat -I POSTROUTING -p udp -s 192.168.1.2 --sport 6112 -j SNAT --to-source 9.235.128.20:63002

iptables -t nat -I PREROUTING -p udp -d 9.235.128.20 --dport 63003 -j DNAT --to-destination 192.168.1.11:6112
iptables -t nat -I POSTROUTING -p udp -s 192.168.1.11 --sport 6112 -j SNAT --to-source 9.235.128.20:63003

About as much use as a chocolate fireguard unless he's using a linux-based router

To OP & cplhardnut - My suggestion is try knocking your rates down... Google it for console commands or just set your connection to be a bit slower in Steam, see if that helps.
Used to help with 1.6 anyway.

cplhardnut · 29 Jun 2008 at 11:31

hi thanks for reply, but the thing is I've already tested a wide range of rates ranging from 10,000 to 30,000, this didnt help I also tried playing around with cl_cmdrate and cl_updaterate. Would portforwarding or entering a firewall rule for CSS fix the problem?

Amnesia · 29 Jun 2008 at 14:24

are you with virgin media ? they do tend to have very poor upload speeds so maybe your just running out of bandwidth

cplhardnut · 29 Jun 2008 at 14:27

yep i have a 10mb virgin media connection 512kb upload

Devil_Spawn · 29 Jun 2008 at 14:35

perhaps set up one of the pcs with a proxy?

Kreeeee · 29 Jun 2008 at 14:38

russ0r said:
About as much use as a chocolate fireguard unless he's using a linux-based router

Perhaps, I'm not sure which routers allow simple firewall rule changes like the ones I suggested but if not a linksys wrt54g that will do it costs £15.

cplhardnut · 29 Jun 2008 at 14:38

lol im clueless when it comes to networking how do i go about setting up a proxy?