ive tried everything to play my own realm, looked up guides and changed a lot of pc settings and I still cant even play in my own realm without being kicked out by that error code
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This appears to be a duplicate of REALMS-3593, which hasn't yet been resolved. If you have any additional information to provide regarding this issue, feel free to comment on the parent ticket. If you feel that this issue is affecting you, feel free to vote for the duplicated ticket, to give Mojang a basic idea of how many people are impacted by the problem. Just to further inform you, this will not determine how quickly the bug gets handled or fixed.
Thank you for your report!
We're tracking this issue in REALMS-3593, so this ticket is being resolved and linked as a duplicate.
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Hmm, Realms has it's own bug tracker for realms issues here:
https://bugs.mojang.com/projects/REALMS/summary
Maybe try posting this issue there? They should be able to help you