The sim uses only UDP traffic, so if the others using your Internet connection are using mostly TCP, and you can give priority to UDP traffic, that would be an easy first step.


There are two ends to each communication: the local end (your computer), and the server end (our server).


For the sim:


We use "ephemeral" ports on the local end. This means that your computer finds an unused port number, and uses it for its end of the connection. There is not much you will be able to do with that, since most programs do this same thing.


We use a fixed range of ports (15000..52500) on our race servers. Hopefully, you can specify port ranges, and not just individual port numbers.


If you can give priority to (remote) IP address ranges, instead of port numbers, that may be more reliable.

Note: Servers listed below do not necessarily mean they are running as they are taken in and out of maintenance.

US East --> --> 2620:13d:e000:100::1 --> --> 2620:13d:e000:100::2 --> --> 2620:13d:e000:100::3 --> --> 2620:13d:e000:100::4 --> --> 2620:13d:e000:100::5 --> --> 2620:13d:e000:100::6 --> --> 2620:13d:e000:100::7 --> --> 2620:13d:e000:100::8 --> --> 2620:13d:e000:100::9 --> --> 2620:13d:e000:100::10 --> --> 2620:13d:e000:100::11 --> --> 2620:13d:e000:100::12 --> --> 2620:13d:e000:100::13 --> --> 2620:13d:e000:100::14 --> --> 2620:13d:e000:100::15 --> --> 2620:13d:e000:100::16 --> --> 2620:13d:e000:100::17 --> --> 2620:13d:e000:100::18 --> --> 2620:13d:e000:100::19 --> --> 2620:13d:e000:100::20 --> --> 2620:13d:e000:100::21 --> --> 2620:13d:e000:100::22 --> --> 2620:13d:e000:100::23 --> --> 2620:13d:e000:100::24

US West

Dynamically allocated IPs



Dynamically allocated IPs


Dynamically allocated IPs


Dynamically allocated IPs


Dynamically allocated IPs