Hello Brian, I found your post on the USRP-user mailing list http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/2017-September/026528.html I also got the same error with you, do you find solutions to this issue?
In my case, the command "usrp_burn_mb_eeprom" did not even work as below sdrn@sdrn-OptiPlex-9020:~/rfnoc/lib/uhd/utils$ ./usrp_burn_mb_eeprom --args="type=x300,serial=3104FBD" --values="ip-addr0=192.168.10.3,ip-addr2= 192.168.30.3,ip-addr3= 192.168.40.3" Creating USRP device from address: type=x300,serial=3104FBD [INFO] [UHDlinux; GNU C++ version 5.4.0 20160609; Boost_105800; UHD_4.0.0.rfnoc-ofdm-408-gf3a40f9a] [INFO] [X300] X300 initialization sequence... [INFO] [X300] Determining maximum frame size... [INFO] [X300] Maximum frame size: 8000 bytes. [INFO] [X300] Setup basic communication... [INFO] [X300] Loading values from EEPROM... [WARNING] [X300] Duplicate IP address 192.168.40.2 found in mboard EEPROM. Device may not function properly. View and reprogram the values using the usrp_burn_mb_eeprom utility. [INFO] [X300] Setup RF frontend clocking... [INFO] [X300] Radio 1x clock:200 [ERROR] [UHD] Exception caught in safe-call. in virtual ctrl_iface_impl::~ctrl_iface_impl() at /home/sdrn/rfnoc/src/uhd/host/lib/rfnoc/ctrl_iface.cpp:76 this->peek32(0); -> EnvironmentError: IOError: Block ctrl (CE_00_Port_30) no response packet - AssertionError: bool(buff) in uint64_t ctrl_iface_impl::wait_for_ack(bool) at /home/sdrn/rfnoc/src/uhd/host/lib/rfnoc/ctrl_iface.cpp:197 Error: EnvironmentError: IOError: Block ctrl (CE_00_Port_30) no response packet - AssertionError: bool(buff) in uint64_t ctrl_iface_impl::wait_for_ack(bool) at /home/sdrn/rfnoc/src/uhd/host/lib/rfnoc/ctrl_iface.cpp:197 -- Best regards, Qing
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