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IMPORTANT: LaCie RAID Manager v1 and macOS Sierra (10.12) Compatibility

This article provides information about the compatibility of LaCie RAID Manager (v1) and macOS Sierra.

Issue: After updating to macOS Sierra you may experience connectivity issues when launching LaCie RAID Manager (v1). The web browser won't be able to connect to the server, and a message appears informing that web browser can't open the page "localhost:8845" because it can't connect to the server "localhost".  See an example below:

User-added image

Affected devices:
LaCie 5big Thunderbolt 2
LaCie 8big Rack Thunderbolt 2


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To resolve the issue, please uninstall LaCie RAID Manager (v1) and then download and install LaCie RAID Manager v2 which is compatible with macOS Sierra. It's available to download here.