2 Replies Latest reply on Oct 23, 2020 2:34 AM by nancyz

    VMware Fusion Networking completely screwed up in macOS Big Sur Beta 10

    howaldoliver Lurker

      Hi everybody,


      I have a problem with VMware Fusion 12 and macOS Big Sur Beta 10 (I'm not sure, if it occurred on earlier Betas or macOS Catalina, but I can tell that Fusion 11.5 and Catalina worked well with the same setup).


      The problem is, when I choose "Autodetect" or "Wi-Fi" as Network setting in vm preferences, I can't do various internet-base operations anymore in the vms. For example, I cannot install snap packages or I cannot pull docker images. I tested on various Linux distribution guests like Ubuntu, Fedora or CentOS. I always get the error "tls: bad record MAC", depending on the tested tool the error message is a little bit difference but comes to the same.


      Searching for this error message in the web told me that this issue only occurs when the Network is screwed up, it's not fixable from Linux itself. It actually only occurs with VMware VMs, I don't have those problems with "real" computers...


      Could you please have a look at this?


      It's also possible, Apple screwed something up there in the latest beta, like I said, I don't know exactly when it occurred for the first time. At the moment macOS is still at beta phase but Apple will release it soon and then we should have a working VMware.


      Does anybody have the same problem or some advises how I can solve this?