Rainbow Six Siege has come a long way in the five years since it came out. With tonnes of updates and new characters, there's a lot to keep in check. This is why it makes sense that servers sometimes fail and issues pop up.
Luckily, most error codes are quite easy to fix if you know what you're looking for. Here's everything you need to know about Rainbow Six Siege error code 3-0001000B.
What Is Error Code 3-000100B in Rainbow Six Siege?
The error code simply states that the servers are unreachable. This seems pretty self-explanatory but there could be a few main reasons for this.
It might not always be an issue on Ubisoft's end. It could be an issue in between and it just looks like an error they've spotted before. Here are a few things you could try to solve this issue.
How To Fix This Issue
First, there could be an issue with the current version of the game on your PC, Xbox and PlayStation. To fix this, just uninstall and reinstall your game. You can do this by going into your games library. This should reset the place in your storage, potentially fixing your issue.
Of course, this solution may take a while so here are a few tips to try out beforehand. Disconnect your internet and console/PC. After this, turn it back on again. This is always the most simple choice but you find it here for a reason.
Errors aren't always precise so sometimes, they get misattributed to something a little more serious. Occasionally, a quick restart can fix everything for you.
After this, try connecting your console or PC via an ethernet cable. This can sometimes get through an unstable connection. Unfortunately, with these types of issues, the best thing to do is try everything until it works. If all of this doesn't work, give the game half an hour and try again.