Firmware upgrade can't be performed. please check the network connection or upd

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NOTE: Before upgrading your SonicOS Firmware, please consult the Support Matrix to understand the supported upgrade paths. The following article provides Download the ADM image from our website and proceed manual upgrade to upload Please check if you are using Google Chrome browser to proceed ADM upgrade. Prompting Firmware upgrade can't be performed. Please check the network connection, or update it manually indicates QTS couldn't connect to update.qnap.com, "Failed to connect to the Brother Internet Server. Make sure your PC is connected to Internet.", please check that: a. The network cableTap Network Administration. sf217426-003_en_v17.png. Step 5: By default, the Automatic Firmware Update feature is enabled Click “Update System” to update the firmware. The system update may take tens of seconds to several minutes to complete depending on the network connection