Support area aside... Sounds to me it's not even a networking issue, although I'm guessing the software uses something like hpip, like an hp wireless printer. If the software can't find the device, maybe the best thing to do is try to initialize a new connection to it... and write the new name down on a label and stick it to it for the future. Or, try to use it hardwired if possible. I'm guessing because I know nothing about vinyl cutters, and I doubt many others here do either.
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