Столкнулся с такой вот ситуацией -
есть два модуля с крейтами. Один подключен по USB, а второй по Ethernet. Иногда пропадает соединение с крейтами в модуле, соединенном по Ethernet. Причем помогает только Reset. Что это может быть?
[23.08.12 16:58:56.743] (0) SERVER: Starting up LTR-Server v1.5.3.4 (L-CARD)
[23.08.12 16:58:56.743] (4) CRATE_CTL: LTRServiceCrate thread started.
[23.08.12 16:58:56.743] (4) CLIENT_CTL: LTRServiceClient thread started.
[23.08.12 16:58:56.750] (4) CLIENT_INIT: Server: Stasl-ПК [192.168.0.1] [192.168.1.3]
[23.08.12 16:58:56.751] (4) CLIENT_INIT: User: Stasl
[23.08.12 16:58:56.751] (4) CRATE_CTL: Scanning USB crates
[23.08.12 16:58:56.754] (7) CRATE_CTL: USB device found, unsupported: "USB-устройство ввода" at //?/usb#vid_0458&pid_003a#6&15dc4b66&0&3#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 16:58:56.756] (7) CRATE_CTL: USB device found, unsupported: "Составное USB устройство" at //?/usb#vid_04f2&pid_0402#6&15dc4b66&0&1#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 16:58:56.756] (7) CRATE_CTL: USB device found, unsupported: "Составное USB устройство" at //?/usb#vid_04fc&pid_2800#6&19db403c&0&3#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 16:59:13.132] (5) CRATE_INIT: [192.168.0.248]: crate service started.
[23.08.12 16:59:13.132] (3) CRATE_INIT: Connecting IP crate 192.168.0.248 ...
[23.08.12 16:59:34.134] (1) CRATE_INIT: [192.168.0.248]: cannot connect to 192.168.0.248: Connect failed (10060)
[23.08.12 16:59:34.134] (3) CRATE_CTL: [192.168.0.248]: crate stopped
[23.08.12 16:59:49.821] (7) SERVER: USB device connected, unsupported: "Unknown Device" at //?/USB#VID_0000&PID_0000#6&15dc4b66&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 16:59:49.851] (7) SERVER: USB device disconnected, unsupported: "Unknown Device" at //?/USB#VID_0000&PID_0000#6&15dc4b66&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 17:03:23.562] (5) CRATE_INIT: [192.168.0.248]: crate service started.
[23.08.12 17:03:23.562] (3) CRATE_INIT: Connecting IP crate 192.168.0.248 ...
[23.08.12 17:03:44.261] (7) SERVER: USB device connected, unsupported: "Unknown Device" at //?/USB#VID_0000&PID_0000#6&15dc4b66&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 17:03:44.291] (7) SERVER: USB device disconnected, unsupported: "Unknown Device" at //?/USB#VID_0000&PID_0000#6&15dc4b66&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 17:03:44.568] (1) CRATE_INIT: [192.168.0.248]: cannot connect to 192.168.0.248: Connect failed (10060)
[23.08.12 17:03:44.568] (3) CRATE_CTL: [192.168.0.248]: crate stopped
[23.08.12 17:03:55.805] (3) SERVER: USB crate connected: "LTR-EU-2" at //?/USB#VID_0471&PID_3131#6&15dc4b66&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 17:03:55.817] (3) CRATE_INIT: Connecting USB crate: devinst = 00000940, path = //?/usb#vid_0471&pid_3131#6&15dc4b66&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 17:03:55.818] (7) CRATE_INIT: Init USB crate: OpenLDeviceByName() ok
[23.08.12 17:03:55.819] (7) CRATE_INIT: Init USB crate: GetModuleName() ok
[23.08.12 17:03:55.819] (7) CRATE_INIT: Init USB crate: GetModuleDescription() ok
[23.08.12 17:03:55.820] (3) CRATE_INIT: Crate Info:
[23.08.12 17:03:55.820] (3) CRATE_INIT: + DeviceName = LTR031
[23.08.12 17:03:55.820] (3) CRATE_INIT: + SerialNumber = 2D563701
[23.08.12 17:03:55.820] (4) CRATE_INIT: + DeviceComment = Broaching Creation Date May 14 2009
[23.08.12 17:03:55.820] (4) CRATE_INIT: + Connection = USB 2.0 (high speed)
[23.08.12 17:03:55.820] (4) CRATE_INIT: + BootLoaderVersion = 222.173.190.239
[23.08.12 17:03:55.820] (4) CRATE_INIT: + FirmwareVersion = 1.0.0.1
[23.08.12 17:03:55.928] (1) CRATE_INIT: LTR031 [2D563701]: cannot load FPGA from C:/Program Files (x86)/L-Card/ltrserver/ltr010v3_0_5.ttf: InitDMAC(0) failed
[23.08.12 17:03:55.928] (1) CRATE_INIT: Cannot initialize crate //?/usb#vid_0471&pid_3131#6&15dc4b66&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 17:03:55.928] (3) CRATE_CTL: LTR031 [2D563701]: crate stopped
[23.08.12 17:03:56.137] (3) SERVER: USB crate disconnected: "LTR-EU-2" at //?/USB#VID_0471&PID_3131#6&15dc4b66&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 17:03:56.137] (7) CRATE_INIT: Disconnecting USB crate: devinst = 00000940
[23.08.12 17:04:01.100] (3) SERVER: USB crate connected: "LTR-EU-2" at //?/USB#VID_0471&PID_3131#6&15dc4b66&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 17:04:01.107] (3) CRATE_INIT: Connecting USB crate: devinst = 00000940, path = //?/usb#vid_0471&pid_3131#6&15dc4b66&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 17:04:01.107] (7) CRATE_INIT: Init USB crate: OpenLDeviceByName() ok
[23.08.12 17:04:01.108] (7) CRATE_INIT: Init USB crate: GetModuleName() ok
[23.08.12 17:04:01.109] (7) CRATE_INIT: Init USB crate: GetModuleDescription() ok
[23.08.12 17:04:01.109] (3) CRATE_INIT: Crate Info:
[23.08.12 17:04:01.109] (3) CRATE_INIT: + DeviceName = LTR031
[23.08.12 17:04:01.109] (3) CRATE_INIT: + SerialNumber = 2D563701
[23.08.12 17:04:01.109] (4) CRATE_INIT: + DeviceComment = Broaching Creation Date Jun 21 2011
[23.08.12 17:04:01.109] (4) CRATE_INIT: + Connection = USB 2.0 (high speed)
[23.08.12 17:04:01.109] (4) CRATE_INIT: + BootLoaderVersion = 240.15.240.15
[23.08.12 17:04:01.109] (4) CRATE_INIT: + FirmwareVersion = 2.0.0.0
[23.08.12 17:04:01.110] (4) CRATE_INIT: + BoardRevision = 1
[23.08.12 17:04:07.220] (1) CRATE_INIT: LTR031 [2D563701]: cannot load FPGA from C:/Program Files (x86)/L-Card/ltrserver/ltr010v3_0_5.ttf: ReadBulk() failed
[23.08.12 17:04:07.220] (1) CRATE_INIT: Cannot initialize crate //?/usb#vid_0471&pid_3131#6&15dc4b66&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[23.08.12 17:04:07.220] (3) CRATE_CTL: LTR031 [2D563701]: crate stopped
[23.08.12 17:04:12.938] (5) CRATE_INIT: [192.168.0.248]: crate service started.
[23.08.12 17:04:12.938] (3) CRATE_INIT: Connecting IP crate 192.168.0.248 ...
[23.08.12 17:04:13.139] (7) CRATE_INIT: [192.168.0.248]: OpenLDeviceByIP() ok
[23.08.12 17:04:13.339] (7) CRATE_INIT: [192.168.0.248]: GetModuleName() ok
[23.08.12 17:04:13.939] (7) CRATE_INIT: [192.168.0.248]: GetModuleDescription() ok
[23.08.12 17:04:13.939] (3) CRATE_INIT: Crate Info:
[23.08.12 17:04:13.939] (3) CRATE_INIT: + Location = 192.168.0.248
[23.08.12 17:04:13.939] (3) CRATE_INIT: + DeviceName = LTR031
[23.08.12 17:04:13.939] (3) CRATE_INIT: + SerialNumber = 2D563701
[23.08.12 17:04:13.939] (4) CRATE_INIT: + DeviceComment = Broaching Creation Date Jun 21 2011
[23.08.12 17:04:13.939] (4) CRATE_INIT: + BootLoaderVersion = 222.173.190.239
[23.08.12 17:04:13.939] (4) CRATE_INIT: + FirmwareVersion = 2.0.0.0
[23.08.12 17:04:14.139] (4) CRATE_INIT: + BoardRevision = 1
[23.08.12 17:04:14.139] (4) CRATE_INIT: + FpgaName = LTR-031
[23.08.12 17:04:14.139] (4) CRATE_INIT: + FpgaVersion = 1.0.8.0
[23.08.12 17:04:14.139] (4) CRATE_INIT: + FpgaComment = Прошивка ПЛИС EP1C8 контроллера крейта LTR-EU-2-5. L-CARD
[23.08.12 17:04:14.140] (4) CRATE_INIT: + BaudRate = 0x0000
[23.08.12 17:04:14.140] (5) CRATE_CTL: LTR031 [2D563701]: Data thread started.
[23.08.12 17:04:14.140] (4) CRATE_INIT: LTR031 [2D563701]: Opening data connection
[23.08.12 17:04:14.141] (4) CRATE_INIT: LTR031 [2D563701]: Data connection established
[23.08.12 17:04:14.349] (3) CRATE_READ: LTR031 [2D563701]: module configuration updated. mconfig=0003
[23.08.12 17:04:14.349] (3) CRATE_WRITE: LTR031 [2D563701]: sending STOP+RESET+STOP to slot 1
[23.08.12 17:04:14.349] (3) CRATE_WRITE: LTR031 [2D563701]: sending STOP+RESET+STOP to slot 2
[23.08.12 17:04:14.352] (3) CRATE_READ: LTR031 [2D563701]: found new module LTR11 (slot = 1, mid = 0B0B)
[23.08.12 17:04:14.352] (3) CRATE_READ: LTR031 [2D563701]: found new module LTR34 (slot = 2, mid = 2222, fast)
[23.08.12 17:04:14.352] (5) CRATE_READ: LTR031 [2D563701]: change baud rate to 0x0002
[23.08.12 17:04:37.435] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 0]: Connection started
[23.08.12 17:04:37.436] (5) CLIENT_CTL: 127.0.0.1 [2D563701 : 0]: received end-of-connection
[23.08.12 17:04:37.436] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 0]: Connection stopped
[23.08.12 17:04:38.721] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 1]: Connection started
[23.08.12 17:04:38.722] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 1]: starting write thread
[23.08.12 17:04:38.722] (5) CLIENT_READ: 127.0.0.1 [2D563701 : 1]: starting read thread
[23.08.12 17:04:47.530] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 2]: Connection started
[23.08.12 17:04:47.530] (5) CLIENT_READ: 127.0.0.1 [2D563701 : 2]: starting read thread
[23.08.12 17:04:47.530] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 2]: starting write thread
[23.08.12 17:05:00.125] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 1]: received end-of-connection
[23.08.12 17:05:00.125] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 1]: stopping write thread
[23.08.12 17:05:00.125] (7) CLIENT_READ: 127.0.0.1 [2D563701 : 1]: wait aborted by client shutdown
[23.08.12 17:05:00.125] (5) CLIENT_READ: 127.0.0.1 [2D563701 : 1]: stopping read thread
[23.08.12 17:05:00.125] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 1]: Connection stopped
[23.08.12 17:05:00.333] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 2]: received end-of-connection
[23.08.12 17:05:00.333] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 2]: stopping write thread
[23.08.12 17:05:00.333] (7) CLIENT_READ: 127.0.0.1 [2D563701 : 2]: wait aborted by client shutdown
[23.08.12 17:05:00.333] (5) CLIENT_READ: 127.0.0.1 [2D563701 : 2]: stopping read thread
[23.08.12 17:05:00.334] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 2]: Connection stopped
[23.08.12 17:05:12.702] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 0]: Connection started
[23.08.12 17:05:12.703] (5) CLIENT_CTL: 127.0.0.1 [2D563701 : 0]: received end-of-connection
[23.08.12 17:05:12.703] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 0]: Connection stopped
[23.08.12 17:05:15.311] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 1]: Connection started
[23.08.12 17:05:15.311] (5) CLIENT_READ: 127.0.0.1 [2D563701 : 1]: starting read thread
[23.08.12 17:05:15.311] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 1]: starting write thread
[23.08.12 17:05:15.556] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 2]: Connection started
[23.08.12 17:05:15.557] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 2]: starting write thread
[23.08.12 17:05:15.557] (5) CLIENT_READ: 127.0.0.1 [2D563701 : 2]: starting read thread
[23.08.12 17:05:19.904] (1) CLIENT_WRITE: 127.0.0.1 [2D563701 : 1]: async receive failed (error 10054)
[23.08.12 17:05:19.904] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 1]: stopping write thread
[23.08.12 17:05:19.904] (1) CLIENT_WRITE: 127.0.0.1 [2D563701 : 2]: async receive failed (error 10054)
[23.08.12 17:05:19.904] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 2]: stopping write thread
[23.08.12 17:05:19.904] (7) CLIENT_READ: 127.0.0.1 [2D563701 : 1]: wait aborted by client shutdown
[23.08.12 17:05:19.904] (5) CLIENT_READ: 127.0.0.1 [2D563701 : 1]: stopping read thread
[23.08.12 17:05:19.904] (7) CLIENT_READ: 127.0.0.1 [2D563701 : 2]: wait aborted by client shutdown
[23.08.12 17:05:19.904] (5) CLIENT_READ: 127.0.0.1 [2D563701 : 2]: stopping read thread
[23.08.12 17:05:19.904] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 2]: Connection stopped
[23.08.12 17:05:19.904] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 1]: Connection stopped
[23.08.12 17:05:25.107] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 0]: Connection started
[23.08.12 17:05:25.107] (5) CLIENT_CTL: 127.0.0.1 [2D563701 : 0]: received end-of-connection
[23.08.12 17:05:25.107] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 0]: Connection stopped
[23.08.12 17:05:25.110] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 1]: Connection started
[23.08.12 17:05:25.110] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 1]: starting write thread
[23.08.12 17:05:25.110] (5) CLIENT_READ: 127.0.0.1 [2D563701 : 1]: starting read thread
[23.08.12 17:05:25.555] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 2]: Connection started
[23.08.12 17:05:25.555] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 2]: starting write thread
[23.08.12 17:05:25.556] (5) CLIENT_READ: 127.0.0.1 [2D563701 : 2]: starting read thread
[23.08.12 17:05:30.042] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 1]: received end-of-connection
[23.08.12 17:05:30.042] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 1]: stopping write thread
[23.08.12 17:05:30.042] (7) CLIENT_READ: 127.0.0.1 [2D563701 : 1]: wait aborted by client shutdown
[23.08.12 17:05:30.042] (5) CLIENT_READ: 127.0.0.1 [2D563701 : 1]: stopping read thread
[23.08.12 17:05:30.042] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 1]: Connection stopped
[23.08.12 17:05:30.255] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 2]: received end-of-connection
[23.08.12 17:05:30.255] (5) CLIENT_WRITE: 127.0.0.1 [2D563701 : 2]: stopping write thread
[23.08.12 17:05:30.255] (7) CLIENT_READ: 127.0.0.1 [2D563701 : 2]: wait aborted by client shutdown
[23.08.12 17:05:30.255] (5) CLIENT_READ: 127.0.0.1 [2D563701 : 2]: stopping read thread
[23.08.12 17:05:30.256] (3) CLIENT_CTL: 127.0.0.1 [2D563701 : 2]: Connection stopped
[23.08.12 17:17:42.416] (6) CRATE_CTL: LTR031 [2D563701]: Ping() failed: Read timeout
[23.08.12 17:17:42.416] (2) CRATE_CTL: Ping: 192.168.0.248 failed 1 ping(s)
[23.08.12 17:18:08.410] (6) CRATE_CTL: LTR031 [2D563701]: Ping() failed: Connect failed (10060)
[23.08.12 17:18:08.410] (2) CRATE_CTL: Ping: 192.168.0.248 failed 2 ping(s)
[23.08.12 17:18:34.411] (6) CRATE_CTL: LTR031 [2D563701]: Ping() failed: Connect failed (10060)
[23.08.12 17:18:34.411] (2) CRATE_CTL: Ping: 192.168.0.248 failed 3 ping(s)
[23.08.12 17:18:34.411] (3) CRATE_CTL: LTR031 [2D563701]: crate stopped
[23.08.12 17:18:34.418] (6) CRATE_CTL: LTR031 [2D563701]: Data thread shutting down
[23.08.12 17:18:34.418] (5) CRATE_CTL: LTR031 [2D563701]: Data thread shut down.
[23.08.12 17:53:10.277] (3) CRATE_INIT: Connecting IP crate 192.168.0.248 ...
[23.08.12 17:53:10.277] (5) CRATE_INIT: [192.168.0.248]: crate service started.
[23.08.12 17:53:31.279] (1) CRATE_INIT: [192.168.0.248]: cannot connect to 192.168.0.248: Connect failed (10060)
[23.08.12 17:53:31.279] (3) CRATE_CTL: [192.168.0.248]: crate stopped

Ну, вообще-то не модули с крейтами, а крейты с модулями (crate - это ящик, а модули - это платы в нем).

Лог странный. Попытки соединения по USB и по TCP/IP показывают один и тот же серийный номер. Как будто бы в один крейт вставлено оба кабеля (если это действительно так, то отсоедините тот, который лишний). Сколько у Вас все-таки крейтов?

Два крейта. В одном два модуля (11 и 34), а в другом один модуль (43). Вчера попробовал по вашему варианту - сбоев не было. Таким образом получается, что возникает конфликт при наличии двух подключений  к модулю одновременно?

По идее при таком *некорректном* подключении, если крейт настроен на TCP/IP, то по USB он должен быть виден как пустой (без модулей). Но это не есть допустимый режим работы, вообще говоря. А если крейт настроен на USB, то Ethernet интерфейс вообще выключается.
Штатно крейт может работать одновременно только по одному интерфейсу.