How can I fix the problem so I can play online?
Please follow the steps below to improve your Multiplayer experience:
1. Firewall Software
Start by updating any anti-virus or personal firewall software that may
be installed on your computer. For 3rd party software (ZoneAlarm,
Norton AntiVirus/Internet Security, Mcafee, Avast, etc) check with the
appropriate software vendor for details on updating the software and
definitions.
You
also need to consider the Windows Firewall (accessed via the Control
Panel as seen below) which may block the game from accessing the
Internet. Please note that to update your Windows Firewall definitions
you will need to keep your Windows Updates up to date. For guidance on
keeping your Windows up to date (highly recommended) please see here.
If
updating these programs does not resolve the issue, you may need to
configure the software to allow access to the specific application. This
is generally done through the exceptions list (may be named differently
depending on your software). When adding the game as an exception
remember to add the executable (exe) for both the game and Uplay..
2. Ports
If following the steps above to update and configure your firewall does
not resolve the issue, it will be necessary to forward ports. You will
need to forward these ports to your computer’s IP address for the best possible connection:
Game Ports:
UDP 9000 Incoming / Outgoing
UDP 11000-11005 Outgoing
UDP 9103 Incoming / Outgoing
Uplay PC:
TCP: 80, 443, 13000, 13005, 13200
If
you’re having issues connecting online with the ctOS companion app, and
are using a WiFi connection, please ensure that the following ports are
open on your router.
Companion app ports:
UDP 80 Incoming / outgoing
UDP 443 Incoming / outgoing
Example of port forwarding, this will differ between devices
Directions
for configuring network ports are specific to the software and hardware
being used, and can be found by visiting the manufacturers website.
There are also free resources available such as Port Forward which may help (you can skip the ad to get to the guides). Please note this site is not affiliated with Ubisoft.
3. Background applications
You may also encounter problems due to applications running in the
background on your computer system. If you are encountering problems
playing online, please try closing all running background applications
before starting your game. You can find the steps for this listed below.
- Click Start and type MSCONFIG into the Search box (for XP, click Run and then type the command) and click OK.
- This will open the System Configuration Utility on the General tab.
- Click on the Startup tab, and then click the 'Disable All' button.
- Click Ok and then restart your system when prompted.
Disabling Startup Items via Msconfig
Note:
this should be seen as a temporary solution and any changes can be
reverted by returning to the MSCONFIG utility and clicking 'Enable All"
on the Startup tab.
4. Hosts file
The hosts file is a small text file which is part of the Windows
operating system. This can be used to route traffic or sometimes block a
website.
To
rule this out when dealing with problems accessing the multiplayer part
of the game, it should be cleaned or reset. The easiest way to clean
your HOSTS file is by clicking on the Fix it button on the Microsoft
article found here (Windows 8 users, please see the Fix it myself link).
5. Traffic throttling / Blocked ports
There may also be certain restrictions set by your Internet Service
Provider (ISP). If you continue to have trouble, please contact your ISP
for details on any specific restrictions on the previously mentioned
network ports.