What is the hardware image suitable for USRP2932?

[oyw1022]

I recently changing firmware and FPGA images, multi-USRP connections have become impossible using an unmanaged Ethernet switch.

I would appreciate it if you could tell me the firmware and FPGA compatible with USRP2932.

For reference, I tried all the firmware, FPGA, ping test, but the results were the same.

[oyw1022]

[hardware information used]
NI-USRP2932
NI-USRP2921

NETGEAR Ethernet Switch GS116PP