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Jusuf

has Call of Duty: Modern Warfare 2 (2009) - Multiplayer

Oct 21, 2017 @ 5:28am

Cant join a friends party

I have a problem with the party system. I cant either connect to my friends party and he cant connect to mine. My friend has NAT open, but I dont. Last time I played this game I didnt have NAT open and I were able to play in party so it shouldnt cause the problem.

I cant open my NAT because my router doesnt let me do that

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Showing 1-15 of 15 comments

HalfOfAKebab has Call of Duty: Modern Warfare 2 (2009) - Multiplayer

Oct 21, 2017 @ 4:38pm

If your NAT type is strict, you can't host lobbies, and only people with open NAT types can host lobbies. If your friend's NAT is open, he has to invite you.

I highly doubt your router doesn't let you open your NAT. If you can open ports, you can open your NAT.

First off, just disable the Windows firewall - it's unnecessary to have your router's and Windows' firewall active at the same time. You should only have one or the other. That might fix it. Also close any anti-virus software you have open.

Last edited by HalfOfAKebab; Oct 21, 2017 @ 4:38pm

Jusuf

Oct 22, 2017 @ 7:12am

Im unable to open my NAT since Im using a mobile 4G network. It doesnt allow you to open ports, I can only forward my ports but it doesnt open my NAT. And my friend has his NAT open but I still cant join his game for some reason. This is kind of frustrating since Ive got over 700 hours played on this game and I didnt have any problems before even when my NAT wasnt open.

HalfOfAKebab has Call of Duty: Modern Warfare 2 (2009) - Multiplayer

Oct 22, 2017 @ 8:35am

Originally posted by Jusuf:
Im unable to open my NAT since Im using a mobile 4G network. It doesnt allow you to open ports, I can only forward my ports but it doesnt open my NAT. And my friend has his NAT open but I still cant join his game for some reason. This is kind of frustrating since Ive got over 700 hours played on this game and I didnt have any problems before even when my NAT wasnt open.

Try disabling your Windows firewall and closing any anti-virus software you have open - does that help? And don't just say "no" without actually doing it. It worked for me.

Last edited by HalfOfAKebab; Oct 22, 2017 @ 8:36am

Pure & Rustic has Call of Duty: Modern Warfare 2 (2009) - Multiplayer

Oct 22, 2017 @ 8:52am

How are you connected to the 4G network? wireless or is the 4G adapter connected in your pc usb-port. If its the last one, you can get an open nat by set you network adapter in your PC to Static and use the Ip-adress, dns (and so on) from the 4G adapter to get and open nat. I did this and had an open nat. In wireless i have no clue. I could go into the 4G adapter and see info about the connection and do some changes if i want to, but only when it was directly connected to my computer in one usb(3.0) port.

Jusuf

Oct 22, 2017 @ 9:05am

I already did try to disable my windows firewall and anti-virus software and that didnt work. I dont say no before trying, Ive tried everything that I know right now :D

Jusuf

Oct 22, 2017 @ 9:06am

Originally posted by Pure & Rustic:
How are you connected to the 4G network? wireless or is the 4G adapter connected in your pc usb-port. If its the last one, you can get an open nat by set you network adapter in your PC to Static and use the Ip-adress, dns (and so on) from the 4G adapter to get and open nat. I did this and had an open nat. In wireless i have no clue. I could go into the 4G adapter and see info about the connection and do some changes if i want to, but only when it was directly connected to my computer in one usb(3.0) port.

Its a 4G router, so Im connected to it with an ethernet cable

HalfOfAKebab has Call of Duty: Modern Warfare 2 (2009) - Multiplayer

Oct 22, 2017 @ 9:25am

Originally posted by Jusuf:
I already did try to disable my windows firewall and anti-virus software and that didnt work. I dont say no before trying, Ive tried everything that I know right now :D

You could disable your router's firewall too just for troubleshooting purposes.

Jusuf

Oct 22, 2017 @ 9:32am

So far what I have tried. Changing my DNS, disabling routers firewall, windows firewall, anti-virus,reseting my router settings, forwarding my ports, restarting my computer(:D). Any more ideas? I cant freaking play with my friends :(

HalfOfAKebab has Call of Duty: Modern Warfare 2 (2009) - Multiplayer

Oct 22, 2017 @ 10:09am

Originally posted by Jusuf:
So far what I have tried. Changing my DNS, disabling routers firewall, windows firewall, anti-virus,reseting my router settings, forwarding my ports, restarting my computer(:D). Any more ideas? I cant freaking play with my friends :(

Is UPnP enabled or disabled in your router settings?

Jusuf

Oct 22, 2017 @ 10:16am

Originally posted by HalfOfAKebab:
Originally posted by Jusuf:
So far what I have tried. Changing my DNS, disabling routers firewall, windows firewall, anti-virus,reseting my router settings, forwarding my ports, restarting my computer(:D). Any more ideas? I cant freaking play with my friends :(
Is UPnP enabled or disabled in your router settings?

UPnP is enabled

#10

HalfOfAKebab has Call of Duty: Modern Warfare 2 (2009) - Multiplayer

Oct 22, 2017 @ 10:23am

Originally posted by Jusuf:
Originally posted by HalfOfAKebab:
Is UPnP enabled or disabled in your router settings?

UPnP is enabled

Idk then man, try calling your ISP.

#11

Pure & Rustic has Call of Duty: Modern Warfare 2 (2009) - Multiplayer

Oct 22, 2017 @ 2:04pm

Originally posted by Jusuf:
Originally posted by Pure & Rustic:
How are you connected to the 4G network? wireless or is the 4G adapter connected in your pc usb-port. If its the last one, you can get an open nat by set you network adapter in your PC to Static and use the Ip-adress, dns (and so on) from the 4G adapter to get and open nat. I did this and had an open nat. In wireless i have no clue. I could go into the 4G adapter and see info about the connection and do some changes if i want to, but only when it was directly connected to my computer in one usb(3.0) port.

Its a 4G router, so Im connected to it with an ethernet cable

Then log into the router. Find the IP and dns out to your computer (IPv4) (dont disable any firewall) eneble UPNP, save settings and quit. In computer network settings - ethernet, set IP (IPv4) to static and fill in with the ip and dns (gatway same as dns) from the router. Ipv6 to auto. Choose advanced - (IP-settings and DNS will be filled in automatic), go to WINS - Eneble Netbios over TC/Ip and if wins isnt filled in, choose ADD and fill in the same numbers as in dns (remember the dots) Close and save settings as you close the windows. Restart computer and see if this will help. Dont disable firewall in computer. Just make sure the game is enebled in the firewall.

#12