[Discuss-gnuradio] LED not blinking

[Ruben Undheim]

I have just received the USRP, connected the basicrx and basictx, installed 
all the software, connected the USB 2.0 cable and connected power to it with 
the USRP power adapter.
But when I read dmesg I only see these messages:

[17179697.552000] usb 3-5: new high speed USB device using ehci_hcd and 
address 2
[17179700.664000] usb 3-5: device descriptor read/64, error -110
[17179715.884000] usb 3-5: device descriptor read/64, error -110
[17179716.104000] usb 3-5: new high speed USB device using ehci_hcd and 
address 3
[17179719.216000] usb 3-5: device descriptor read/64, error -110
[17179734.436000] usb 3-5: device descriptor read/64, error -110
[17179734.656000] usb 3-5: new high speed USB device using ehci_hcd and 
address 4
[17179739.676000] usb 3-5: device descriptor read/8, error -110
[17179744.800000] usb 3-5: device descriptor read/8, error -110

The LED on the board is not blinking, and there's no device listed in the 
lsusb output.

But after about an hour fiddling around, suddenly the LED started blinking, 
I got the right messages from dmesg, and i could read the new device in 
lsusb. When I then tried to start some of the programs, it tried to reach 
the USRP and then it suddenly stopped blinking again. The same error 
messages appeared in the dmesg output, and it disappeared from the lsusb 
output. After that it has not started blinking again. I can't get it to 
work. I can feel that the ALTERA chip on the middle is getting a bit warm, 
so I assume that it's doing something, but I don't know what.
Isn't it supposed to blink with only the power outlet connected to it ??

Thanks for help!
Ruben