Steam Community :: Guide :: [Fix] Connection errors and Strict or Moderate NAT Type [Updated 24 Aug 2017]

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[Fix] Connection errors and Strict or Moderate NAT Type [Updated 24 Aug 2017]

By floxay

Updated 24 Aug 2017
A guide to help you fix your connection and NAT Type issues. Strict or Moderate to Open NAT.

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Created by

floxay
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Category: Modding or Configuration, Multiplayer

Languages: English

Posted

Updated

22 Apr, 2017 @ 7:23pm

26 Nov, 2019 @ 4:17pm

11,297	Unique Visitors
226	Current Favorites

Guide Index

Overview

Introduction

Method 1 - Restart your router

Method 2 - Antivirus and its firewall

Method 3 - Ports

Method 4 - DNS flush

Method 5 - Disabling and Enabling UPnP

Method 6 - Check Windows firewall

Method 7 - Reset winsock

Method 8 - DMZ (not recommended, only if none of the above work)

Other methods, feedbacks

Comments

Introduction

I created this guide in order to help players fixing their connection and NAT Type issues. (Strict or Moderate to Open NAT.)

The methods below might not fix your issues even if you tried all of them but the majority of the people successfully fixed their game.

Method 1 - Restart your router

Try to restart your router. This might work for you and easy to do, if it did not work go continue reading.

Method 2 - Antivirus and its firewall

Turn off your third party antivirus and/or its firewall

Third party antivirus softwares (Like avast, norton etc..) could also cause issues so try to turn them and/or their firewall off.

Method 3 - Ports

Forward these ports in your router:

TCP: 80, 443, 13000, 13005, 13200, 14000, 14001, 14008
UDP: 10000-10099, 3074, 6015

To access your router type your Default Gateaway address in your browser URL search bar (usually it's 192.168.1.1 or 192.168.0.1)
Enter the username and password (the default username and password for routers is usually admin (both username and password) or leave the fields blank and click login(most Cisco routers) if neither of these work google it or reset the router to its default settings)

Method 4 - DNS flush

Simply flush your DNS cache

Open cmd.exe as an admin
Enter this: ipconfig /flushdns

Method 5 - Disabling and Enabling UPnP

Change UPnP settings in router

Access your router type your Default Gateaway address in your browser URL search bar (usually it's 192.168.1.1 or 192.168.0.1)
Enter the username and password (the default username and password for routers is admin (both username and password) or leave the fields blank and click login(most cisco routers) if neither of these work google it or reset the router to its default settings)
Go to UPnP and disable it
Apply the change
Now enable UPnP and save the changes
Restart router

Method 6 - Check Windows firewall

Make sure that Rainbow Six Siege is allowed in the Windows Firewall

Open Control Panel
Type Allowed apps to its search
Make sure that Rainbow Six - Siege: Launcher and Tom Clancy's Rainbow Six Siege are checked

Method 7 - Reset winsock

Reset winsock

Open cmd.exe as admin
Enter this: netsh winsock reset
Enter this: netsh int ipv4 reset
Enter this: netsh int ipv6 reset
Restart your PC

Method 8 - DMZ (not recommended, only if none of the above work)

Configuring DMZ

Not recommended!

Access your router type your Default Gateaway address in your browser URL search bar (usually it's 192.168.1.1 or 192.168.0.1)
Enter the username and password (the default username and password for routers is admin (both username and password) or leave the fields blank and click login(most cisco routers) if neither of these work google it or reset the router to its default settings)

If you don't have DMZ setting in your router skip this

Go to DMZ and enable it
Open cmd.exe
Type: ipconfig
Memorize your IPv4 Address, it is something like: 192.168.x.xxx
Go back to DMZ and for Host address enter your IPv4 Address
Save the changes and restart the router

If you don't have DMZ setting:

Forward all the ports
If you have start and end port option start port is 1 and end port is 65535
if you don't have that just enter 1-65535 that means all ports will be forwarded from 1 to 65535
Save the changes and restart the router

Other methods, feedbacks

If this guide helped you fixing the issue please rate and add it to your favorites.

16 Comments

< >

Jkin 30 Apr, 2017 @ 10:53pm

Very helpful although i tried a few before it worked

⑨ 30 Apr, 2017 @ 7:40pm

NICE

Bartholomew Degryse 27 Apr, 2017 @ 3:28pm

Here's a good one: If your ISP gave you a shitty router/modem combo that you've configured to work in bridged mode (if you use your own router), ensure that the modem isn't still filtering ports 80 and 443 despite enabling bridged mode.