Note
Per comment from @unknown Mojang have been unable to reproduce this issue internally so they are asking for a copy of an affected world. If you have a world that is > 10 MB you may upload it to a file sharing site like onedrive, googledrive, etc. and share the link in a comment.
Trying to open any world or create a world brings up the "cannot connect to world" error despite the world being on device.
According to duplicate reports, this happens when the "Multiplayer Game" option is enabled.
Affected platforms (from duplicate reports):
Android
iOS
Windows 10
PlayStation 4
Xbox One
Keywords for search: offline online wifi singleplayer connection message
Linked issues
is duplicated by 79
relates to 1
Attachments
Comments 49
This is copied from my report:
Opening the worlds leads to "Unable to connect to the world. Please check your connection to the internet and try again." I am the owner, I turned multiplayer on or off, and it is not a Realm. All other old worlds work fine, and copies of these two worlds do not work either. I disabled my Xbox connection to the internet and it has the same effect. Again, I am the owner and it is saved to my console. No connection should be failing because a connection in not needed for offline and hosted worlds.
When it reaches the "Unable to Connect" screen, my internet slows tremendously. Barely any device can load webpages, reddit, or anything using internet. It appears that screen hangs and causes the internet to slow, even after selecting "Ok" it takes up to 1 minute to return to the main menu. Without much knowledge of this type, this appears to be some kind of memory/connection leak based on the long pause and slow internet.
Uninstall and reinstall did not fix this issue.
If you have a copy of the world available, you might like to upload a copy of it for investigation.
On Windows 10 you can use the Export world feature.
On Android or iOS you need to use a file explorer to navigate to Device storage > games > com.mojang > minecraftWorlds
On Xbox or Switch the only way is to upload it to a Realm, and then download the world on Windows 10 or Android/iOS. (Please do not purchase a Realms subscription just to provide a world to us - but if you have a Realm already this may be a viable option if you wish to do so.)
If the world is larger than 10MB you can upload the world to OneDrive or a similar file sharing site, and then share the link.
I don't have a realm subscription currently, and the free trial requires payment option to start. I would if I could.
Additionally, a backup save created 2 years ago (before lots of progress) loads fine. I hope someone else here has access to W10 to get the necessary saves to help this bug get fixed.
Still an issue according to MCPE-130012.
If you have this issue then please provided a copy of the affected world as requested in the Note at the top of this report. Simply saying you have the issue without providing the requested information does not help to solve it.
Will the link be private? because i don't really want people to download the world. If not then i am going to try and make a new world with the unable to connect bug.
You can create a private report (set security level to private) that includes the link and mentions this report, then put the report number in your comment here. Only moderators and Mojang will be able to access the private report.
It seems if you are playing with addons for a long time that the world will get the unable to connect world bug. I have a world that is working fine. But when you add the addons on the world after a few minutes / world exploring the world will not be available anymore. I am going to add the world without the unable to connect bug to the private link to investigate.
Thank you for your report!
However, this issue has been temporarily closed as Awaiting Response
Is this still an issue in the latest version? How do you connect to the internet? Do you use Wi-Fi or cellular data?
This ticket will automatically reopen when the original reporter updates the ticket.
Just a reminder: In order for your bug ticket to have the greatest chance of being reproduced and fixed successfully, please remember to include details about the type of device you are using, and also include steps to reproduce the issue like so:
If your ticket does not look like the example given here, then it's likely to be closed as incomplete.
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