Original Post — Direct link
I cannot join a match since the last update and keep getting the error code of 4-0xFFF0BDC0. I tried to unlink social media on my Ubisoftware account, reboot router and reinstall Siege, steam and uplay, none of them work. Anyone can help? Thanks in advance.
2 months ago - Ubi-Viral - Direct link
Hey, JAZZ_1025!

Sorry to hear that you are encountering this issue. Can we ask that you please try the steps from the link below also:


If the issue persists please let us know.

Thank you.
2 months ago - Ubi-Viral - Direct link
Originally Posted by JAZZ_1025
Hi Viral, I found that I can change my date centre and join a match in US and Brazil server, which means I may not been blocked in Australia. But error code shows up in all asian and european servers. So it's probably not an issue at my end? If there is a bug pls fix it, I really want to play with my friends in SEA server. Thank you.
Hey, JAZZ_1025!

Thank you for getting back to us! Were you able to complete the port forwarding? I think this could help you with this issue.
2 months ago - Ubi-Milky - Direct link
Hello JAZZ_1025,

Thanks for coming back to us.

(I edited your post and removed the other pictures for privacy, just in case)

Your port settings look fine. Has there been any improvement with your connection?

If not, you can always set up the following ports for Uplay too like this -
TCP: 80, 443, 13000, 13005, 13200, 14000, 14001, 14008

Another trick that worked for some players who were also receiving this error code was to disconnect any third party accounts from you Ubisoft account.
You can do this through our account management site here -

Please let us know if you are still having trouble connecting.
about 2 months ago - UBI-Froggard - Direct link

Sorry to hear you still have the issue. You could try switching to Google DNS as another solution. You can check Google's guide on how to do this here .
about 2 months ago - Ubi-Karl - Direct link
Thanks for the update JAZZ_1025 and I am sorry to hear about this.

As it stands, I can confirm that issue is currently affecting a number of players and is therefore under review by our game team.

We are currently in process of delivering fix for the issue, however more details to come at a closer date, so keep an eye!

I do apologise about the inconvenience and thank you for your patience in the meantime.

Links in this thread

Ubisoft Account

Troubleshooting connectivity issues in Rainbow Six: Siege
What can I do to resolve issues with connectivity and online features in Rainbow Six: Siege on PC?

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