Sniper's Paradise

Sniper's Paradise!

Calculating the MaxClientRate

The most important setting to avoid lag and packet loss in your server is called MaxClientRate. It is essential that this setting is configured correctly. If it is too low, there might not be enough bandwidth to send all events on the server to the client. (Resulting in invisible rockets, monsters and so on) When it is set too high, the server will try to send more data than the connection allows, which will result in packet loss and huge lag for all players. A too low setting is still better than too high! The correct value is dependent on your servers upload speed and the number of players + spectators. To calculate the correct value, use this calculator.

Netspeed Calculator (requires JavaScript to be enabled):

Server's Bandwidth [kbit/sec]:		e.g. Modem=56, ISDN=64, T-DSL=128, etc. (if you have asymmetric bandwidths enter the upload bandwidth, usually the smaller value!) If you're unsure ask your ISP or use the experimental way, e.g.: This value is related to your server computer's internet connection and not a setting of the Unreal server!
MaxPlayers:		Advanced Options -> Game Settings -> MaxPlayers
MaxSpectators:		Advanced Options -> Game Settings -> MaxSpectators
MaxClientRate:		Advanced Options -> Networking -> TCP/IP Network Play -> MaxClientRate (= max. NetSpeed the server will accept from clients, 500 is lowest possible (very bad), 2600 is low, 5000 is medium)
Usage instructions: Always fill in the server's bandwidth. Fill in two of the Max... values and press enter to calculate the third Max... value. If you provide MaxPlayers and MaxSpectators then don't set your server's MaxClientRate higher than the calculated value. If you provide the desired netspeed then don't set your server's MaxPlayers or MaxSpectators higher than the calculated value.

Unreal Server Port Usage

People setting up Unreal servers behind firewalls and routers have been asking for a summary of the TCP/IP ports Unreal uses. Here goes:

UDP 7775 and 7776 are used only for LAN games. You don't need to route them through a firewall.
UDP 7777 is for gameplay.
UDP 7778 is for server querying.
UDP 7779+ are allocated dynamically for each helper UDPLink objects, including UDPServerUplink objects.
UDP 27900 is for server querying, if you enable the master server uplink. Some master servers use other ports, like 27500.

If you are running Unreal as a server behind a Cable/DSL Router you need to go to the port forwarding menu on your router and forward Unreal's ports to the internal IP that your server has.
Consult the manual and support page of your router / firewall vendor for instructions.

Spam Killer
Back To Top

2005 Sniper's Paradise
All logos and trademarks are properties of their respective owners.
Unreal™ is a registered trademark of Epic Games Inc.
Privacy Policy
Website by Softly
Powered by RUSH