Hi Marcus, Thanks for your reply.
> Do you know what kind of Ethernet controller is on your ports? Are > they 82579LM by any chance? My Ethernet controller is Broadcom NetXtreme 57XX http://www.broadcom.com/support/ethernet_nic/downloaddrivers.php <http://www.broadcom.com/support/ethernet_nic/downloaddrivers.php> > You *have* to make certain that Network Manager isn't trying to > automatically assigned addresses on those cards, since it will try, and > then take them out of service if it doesn't get a DHCP address > assignment. Yes, I 'unmanaged' the two Ethernet connections pertaining to the two N200's. I can confirm that by going to the 'network manager' in Ubuntu where it shows that they are 'unmanaged'. Then, in the 'interfaces' file I define the following: auto eth3 iface eth3 inet static address 192.168.10.1 netmask 255.255.255.0 pre-up ethtool -s eth3 speed 1000 duplex full autoneg off auto eth4 iface eth4 inet static address 192.168.20.1 netmask 255.255.255.0 pre-up ethtool -s eth3 speed 1000 duplex full autoneg off I tried it both with and without the 'pre-up' line shown above without any success. If it is a networking issue, is there any thing else you recommend? Can it be an issue of compatibility since one device is N200 Rev 2.0 and the other is N200 Rev 4.0? BTW, I tried to use an external signal generator (not the LFTX installed onboard one of the two N200's) to feed both the LFRX receivers, and I used one USRP Source in GRC. The four channels worked just fine. The problem is there when only using the LFTX (i.e., installed on one of the N200's) simultaneously with the *four* receive channels. Thanks, Khalid -- View this message in context: http://gnuradio.4.n7.nabble.com/Issues-with-syncing-two-USRPs-tp48883p48926.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
