I found the snippet below in the 3.2 user guide. It states that you can only select external antennas types. But in the user guide for 3.4, there isn't a restriction for antenna type. Either way, it doesn't elaborate on why you can not choose an inte...
The Firepower 2100 supports EtherChannels in Link Aggregation Control Protocol (LACP) Active or On mode. The link to the guide is below:
https://www.cisco.com/c/en/us/td/docs/security/asa/quick_start/fp2100/asa-2100-gsg/firepower-chassis-manager.h...
You can set up a packet capture on both sides of the tunnel. This way you can see that the RDP traffic is making it to the other side.
https://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/118097-configure...
I thought about using the USB port too. But the install guide says for the 2T/720 that it's not operational. Most of the upgrades I do now are remote so I haven't tried it. Have you done this via the USB drive before?