Failed to upgrade RM520N-GL DL_FireHose Timeout

I am trying to upgrade the firmware to RM520NGLAAR01A07M4G_01.202.01.202. But it always failed with message " DL_Firehouse , Timeout" .

I am running Qflash 6.4 as local admin, DM Port as the com port for upgrade.
Any idea why?

Also, can I use FOTA to upgrade RM520N?

Dear @Ray_Anton
Did you try the baudrate with 460800 and 961200?

I did. same result. but I was able to upgrade via QFirehose on linux . just not from QFLASH.