I concur. TFTP is subject to blocksize limitation and can stall during transfer over latent connections. Depending on if the packets are routed and the MTU the file transfer may be limited to 32MB (512-byte PDU), 64MB (1024-byte PDU) or ~91-96MB (of...
I would suggest opening a case with GTAC support to investigate this further. If you do, please provide a show support ZIP and if possible a config-only backup of your Site Engine system.
If you select a switch, a group of switches or all of them and right-click -> Export Serial Numbers you should be able to export full a full list of devices by IP including modules/slots/serial information (and other sensor/chassis type information)....
You can also add the switches, APs, other devices as Ping Only devices. No SNMP. This will inhibit IP resolution and other SNMP-based exchanges Control would have with SNMP-capable devices. If you opt for this then IP resolution for example will depe...