Modern Warfare 2
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tituka #12119 1. Modern warfare 2 - Connection failed
Solution : Go to Network connections on your PC > Right mouse click on your connection .
Go to the last tab; Windows Firewall >>> add the following ports :
1500
3005
3101
28960
Set them all on UDP and reboot PC.
Same goes for routers. Open up, Port forward. ( portforward.com - info for most routers and how to)
Call of Duty: Modern Warfare 2 transmits and receives network traffic on :
ports UDP: 1500, 3005, 3101, 28960 and TCP: 27015 (SRCDS Rcon port).
Additionally the Steam client transmits and receives network traffic on :
ports UDP: 27000-27015, 27015-27030 and TCP: 27014-27050.
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Sometimes just a simple "Take the power plug from router out and put it back in" does the trick.
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Switch of any anti virus program.
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You use Norton ? Uninstall may help.