I have a ehwic card that i have successfully connected to the verizon wireless 4g network. however, the weird thing is that when i issue the command sh cellular 0/0/0 radio, it shows Current RSSI = -0 dBm and the led light on the back of the card shows no activity. But i am clearly able to get on the internet and am getting pretty decent speeds. Is this something to be concerned about? or am i being OCD?