VMware Workstation

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  • 1.  ISBRendererComm: Lost connection to mksSandbox

    Posted Oct 22, 2023 04:23 AM

    I upgraded to 17.5.0 recently and ever since, I keep getting the error message ISBRendererComm: Lost connection to mksSandbox. I do not know if this is a problem, but I note that VM has become unstable.

    Sometimes internet does not work. Sometime, VM freezes. It sometime pushes memory usage and my host Windows machine becomes completely unusable.

    Logs attached, per recommendation.



  • 2.  RE: ISBRendererComm: Lost connection to mksSandbox

    Posted Dec 14, 2023 11:25 PM

    I reported this issue in v16.x a long time ago, and it is still plaguing me. I was hoping v17.x would finally resolve it, but I guess not. I was never able to get any kind of satisfactory answer to the problem, but I have noticed that it seems to happen more frequently when running more than one VM at a time. I experience it most frequently when I try to restore snapshots, but this last week it has been happening as I have been installing software or running Windows Updates on multiple VMs simultaneously. During the last two weeks, I have spent more time waiting for VMWare to leave the "Not Responding" state than I have actually spent using it. I have seriously considered reverting to VMWare Workstation Pro v15, but I have upgraded hardware compatibility on many of my VMs to 16.2.x already and I am afraid I would not be able to use them anymore.



  • 3.  RE: ISBRendererComm: Lost connection to mksSandbox



  • 4.  RE: ISBRendererComm: Lost connection to mksSandbox

    Posted Dec 15, 2023 12:15 AM

    Wow, night and day difference for me! Not a single crash or freeze yet after disabling Accelerate 3D graphics setting.



  • 5.  RE: ISBRendererComm: Lost connection to mksSandbox

    Posted May 02, 2025 12:02 PM

    Thanks ACordner, was fighting this for a while and now it's solved! Cheers!!!