Son has a Macbook (running El Capitan)he normally uses the WiFi in the
house but thinking of out and about he has gotten himself a PAYG USB
dongle

http://consumer.huawei.com/my/mobile...s/e3533-my.htm

so he can get WiFi over the mobile network.

However we cannot seem to get a signal (3G) for it, neither indoors
nor taking a walk down to the mobile masts in a nearby car-park.
Are there any tips and tricks to setting up one of these dongles
or is it a case of no signal no connection to the computer rather than
no connection to the computer the Dongle doesn't even bother 'looking'
for a signal?