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- No internet for updating firmware on LaserJet Pro 400 M401dn...

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01-04-2023 08:27 AM
Operating System: macOS 12.0 Monterey
Printer started showing offline and all print jobs gets stuck in the print que. Tried downloading new firmware but Apple won’t open file because they can’t scan it and tells me to contact the manufacturer.
I then connected the printer directly to the internet via Ethernet cable over a tested and working connection to download firmware directly to the printer but it keeps telling me “connection error” check internet connection. Multiple tries after disconnecting, shutting down etc. same result. Thankful for suggestions!
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