I've been trying to use Matrix to replace sites like Discord or Slack. But it seems that if a user creates an invitation-only room in a server, then invited users who are registered on other servers get errors when trying to join. Not very useful error messages either: "Failed to join room". (In my case, I tried creating accounts and rooms at nitro.chat and then at converser.eu, but friends registered at matrix.org don't manage to join).

Quite a let-down. Anyone who's facing the same problem and has maybe managed to solve it?

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[–] Eldritch@lemmy.world 2 points 3 weeks ago* (last edited 3 weeks ago)

It's simply acting as a connector. And directing traffic around Nat Etc for lay people or those who don't want to bother with setting up and securing server software or such things. Unless of course I'm completing the two and they aren't related. It's possible I suppose. But I've used the app a couple of times. And I don't ever remember having to sit and wait for a file upload. It was instant. Like the file being hashed and info being generated. Then slapping you with a QR code or a string to give to the person you're sending it to Initiate the transfer