Please make sure the volume configured with correct Ch#/Drv#.

For iSCSI connection, volumes must be configured with Ch1 (USBiA), and the Drv# must be 8-15). Reboot ARC-5020 once to activate the new setting after change the setting. ARC-5020 does not support CHAP feature on iSCSI initiator setting, please make sure the CHAP feature is disabled.