I am using an Ettus USRP n3xx. I have connected the device to my host desktop via 1GB ethernet. I am able to ping the device using ping <DEVICE_IP_ADDR> and I am able to find the device using both uhd_find_devices and uhd_usrp_probe. I am also able to ping my host when I tty into the USRP. Even with all of this, GNURadio (and GNSS-SDR) is unable to find the device (The error reads "No devices found for -----> Device Address:").
I have already attempted the firewall workaround described here. Any further suggestions would be appreciated.