USRP error

hai eric,

I have been buy four USRP board, but i have trouble for the first time
when connect to the computer with one of the USRP. and the messages is :

[root@lss-67-71 ~]# tail -f /var/log/messages
Oct 2 12:09:53 lss-67-71 gconfd (root-2722): Resolved address
“xml:readwrite:/r oot/.gconf” to a writable configuration source at
position 0
Oct 2 12:42:42 lss-67-71 kernel: usb 1-3: new high speed USB device
using
ehci_ hcd and address 2
Oct 2 12:42:42 lss-67-71 kernel: usb 1-3: device not accepting address
2,
error -71
Oct 2 12:42:42 lss-67-71 kernel: usb 1-3: new high speed USB device
using
ehci_ hcd and address 3
Oct 2 12:42:43 lss-67-71 kernel: usb 1-3: device not accepting address
3,
error -71
Oct 2 12:42:43 lss-67-71 kernel: usb 1-3: new high speed USB device
using
ehci_ hcd and address 4
Oct 2 12:42:43 lss-67-71 kernel: usb 1-3: device descriptor read/64,
error -71
Oct 2 12:42:43 lss-67-71 kernel: usb 1-3: device descriptor read/64,
error -71
Oct 2 12:42:43 lss-67-71 kernel: usb 1-3: new high speed USB device
using
ehci_ hcd and address 5
Oct 2 12:42:43 lss-67-71 kernel: usb 1-3: device descriptor read/64,
error -71

Can i have the solution or guarantee? If it’s don’t have a guarantee,
How
can I fix the USRP?

regards

Mahendra