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Florent Cima

Lead web developer, violinist, and smart-home-enthusiast

Feb 24, 2021

How to solve "Failed to open a connection to the device (-21345)" when trying to scan using…

After trying to scan from my Brother Printer MFC-J995DW using my Mac under Catalina, I faced this problem and found a solution, related to IPV6 address conflicting with the AirPrint scanning feature. So here is a small step by step to help you resolv...

blog.florent.site3 min read

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