Phoneix 4 modem not responding

When trying to do a IMEI 0 FIX I keep getting this error:

LG 2-3G Tool v9.58
supported models: 1568

Repair IMEI...
Search LG Modem port...
Detected LG Modem port at COM11
Modem port cant answer!
Elapsed: 6 secs. --> (v9.58)

Any idea how to fix?