When I try to open 3 RFCOMM connections from the same device to 3 remote ones, the first connection is OK but the 2 following give a "Error: Command Disallowed". I suspect an incorrect bluetooth parameter in my hcid.conf (lp ? lm ?)

HCI sniffer - Bluetooth packet analyzer ver 1.40
device: hci0 snap_len: 1028 filter: 0xffffffff
2007-12-20 17:58:21.442414 < HCI Command: Create Connection (0x01|0x0005) plen 13
    bdaddr 00:17:B0:1E:54:FD ptype 0xcc18 rswitch 0x00 clkoffset 0x0000
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5
2007-12-20 17:58:21.468697 > HCI Event: Command Status (0x0f) plen 4
    Create Connection (0x01|0x0005) status 0x00 ncmd 1

2007-12-20 17:58:21.468711 < HCI Command: Create Connection (0x01|0x0005) plen 13
    bdaddr 00:19:2D:15:FF:0E ptype 0xcc18 rswitch 0x00 clkoffset 0x0000
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5
2007-12-20 17:58:21.472695 > HCI Event: Command Status (0x0f) plen 4
    Create Connection (0x01|0x0005) status 0x0c ncmd 1
    Error: Command Disallowed

2007-12-20 17:58:21.472705 < HCI Command: Create Connection (0x01|0x0005) plen 13
    bdaddr 00:16:4E:83:2D:19 ptype 0xcc18 rswitch 0x00 clkoffset 0x0000
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5
2007-12-20 17:58:21.476695 > HCI Event: Command Status (0x0f) plen 4
    Create Connection (0x01|0x0005) status 0x0c ncmd 1
    Error: Command Disallowed

hci0:   Type: USB
        BD Address: 00:10:60:E8:B6:A1 ACL MTU: 384:8 SCO MTU: 64:8
        UP RUNNING
        RX bytes:9938 acl:157 sco:0 events:350 errors:0
        TX bytes:3965 acl:148 sco:0 commands:118 errors:0
        Features: 0xff 0xff 0x8f 0xfe 0x9b 0xf9 0x00 0x80
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
        Link policy: SNIFF
        Link mode: MASTER
        Name: 'BlueZ'
        Class: 0x000100
        Service Classes: Unspecified
        Device Class: Computer, Uncategorized
        HCI Ver: 2.0 (0x3) HCI Rev: 0x7a6 LMP Ver: 2.0 (0x3) LMP Subver: 0x7a6
        Manufacturer: Cambridge Silicon Radio (10)