After upgrading to UHD 4.1 (build from source using latest on branch), I am
getting the following error consistently when trying to connect to my
system of 8 N321 devices.  I do not get this error when using my previous
version: UHD_4.0.0.0-122-g75f2ba94. I'm wondering if this is a bug.
Rob

[FATAL] [_main] Creating USRP object: rpc::timeout: Timeout of 2000ms while
calling RPC function 'supports_feature'

The following shows the full list of startup messages

[INFO] [UHD] linux; GNU C++ version 9.3.0; Boost_107100;
UHD_4.1.0.2-0-g96032d06
[INFO] [_main] UHD version: 4010002

[INFO] [_main] Searching for device with
args='force_reinit=1,addr0=192.168.70.2,addr1=192.168.71.2,addr2=192.168.72.2,addr3=192.168.73.2,addr4=192.168.74.2,addr5=192.168.75.2,addr6=192.168.76.2,addr7=192.168.77.2'
[INFO] [_main] Found 1 device(s)

mgmt_addr0=192.168.70.2,type0=n3xx,product0=n320,serial0=320EAED,fpga0=WX,claimed0=False,mgmt_addr1=192.168.71.2,type1=n3xx,product1=n320,serial1=320EAEC,claimed1=False,mgmt_addr2=192.168.72.2,type2=n3xx,product2=n320,serial2=320EAEE,claimed2=False,mgmt_addr3=192.168.73.2,type3=n3xx,product3=n320,serial3=320EAE9,claimed3=False,mgmt_addr4=192.168.74.2,type4=n3xx,product4=n320,serial4=320EAE7,claimed4=False,mgmt_addr5=192.168.75.2,type5=n3xx,product5=n320,serial5=320EAE8,claimed5=False,mgmt_addr6=192.168.76.2,type6=n3xx,product6=n320,serial6=320EAEF,claimed6=False,mgmt_addr7=192.168.77.2,type7=n3xx,product7=n320,serial7=320EAEB,claimed7=False

[INFO] [_main] Using Device Address:
    force_reinit: 1
    addr0: 192.168.70.2
    addr1: 192.168.71.2
    addr2: 192.168.72.2
    addr3: 192.168.73.2
    addr4: 192.168.74.2
    addr5: 192.168.75.2
    addr6: 192.168.76.2
    addr7: 192.168.77.2
    mgmt_addr0: 192.168.70.2
    type0: n3xx
    product0: n320
    serial0: 320EAED
    fpga0: WX
    claimed0: False
    mgmt_addr1: 192.168.71.2
    type1: n3xx
    product1: n320
    serial1: 320EAEC
    claimed1: False
    mgmt_addr2: 192.168.72.2
    type2: n3xx
    product2: n320
    serial2: 320EAEE
    claimed2: False
    mgmt_addr3: 192.168.73.2
    type3: n3xx
    product3: n320
    serial3: 320EAE9
    claimed3: False
    mgmt_addr4: 192.168.74.2
    type4: n3xx
    product4: n320
    serial4: 320EAE7
    claimed4: False
    mgmt_addr5: 192.168.75.2
    type5: n3xx
    product5: n320
    serial5: 320EAE8
    claimed5: False
    mgmt_addr6: 192.168.76.2
    type6: n3xx
    product6: n320
    serial6: 320EAEF
    claimed6: False
    mgmt_addr7: 192.168.77.2
    type7: n3xx
    product7: n320
    serial7: 320EAEB
    claimed7: False
    clock_source: external
    time_source: external
    tracking_cals: OFF
    rfnoc_cfg: n321-16x16.rfnoc

[INFO] [_main] Creating rfnoc_usrp device...
[INFO] [MPMD] Initializing 8 device(s) in parallel with args:
mgmt_addr0=192.168.70.2,type0=n3xx,product0=n320,serial0=320EAED,fpga0=WX,claimed0=False,mgmt_addr1=192.168.71.2,type1=n3xx,product1=n320,serial1=320EAEC,claimed1=False,mgmt_addr2=192.168.72.2,type2=n3xx,product2=n320,serial2=320EAEE,claimed2=False,mgmt_addr3=192.168.73.2,type3=n3xx,product3=n320,serial3=320EAE9,claimed3=False,mgmt_addr4=192.168.74.2,type4=n3xx,product4=n320,serial4=320EAE7,claimed4=False,mgmt_addr5=192.168.75.2,type5=n3xx,product5=n320,serial5=320EAE8,claimed5=False,mgmt_addr6=192.168.76.2,type6=n3xx,product6=n320,serial6=320EAEF,claimed6=False,mgmt_addr7=192.168.77.2,type7=n3xx,product7=n320,serial7=320EAEB,claimed7=False,force_reinit=1,addr0=192.168.70.2,addr1=192.168.71.2,addr2=192.168.72.2,addr3=192.168.73.2,addr4=192.168.74.2,addr5=192.168.75.2,addr6=192.168.76.2,addr7=192.168.77.2,clock_source=external,time_source=external,tracking_cals=OFF,rfnoc_cfg=n321-16x16.rfnoc
[FATAL] [_main] Creating USRP object: rpc::timeout: Timeout of 2000ms while
calling RPC function 'supports_feature'
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