Summary: Easy to setup, in a few steps you have you network ready. You can set it up to be always connected to de 3G network, which is a great feature. I have tested it with laptops, desktops with usb wifi adapters, smartphones and tablets, simply works perfect!! Highly recommended if you want mobility on a trip, or while out of town.
Summary: I was stuck with a 3G21WB home gateway because work disabled USB modems on the laptop without warning - so the 312U was pushed onto the Mac for domestic use. Then the home gateway died and I had to get back online for work. Thought about buying a new gateway for $299, but checked out whirlpool, and from there came here.
Summary: I bought this today to connect to my new BigPond Ultimate USB. I took a bit of a chance, not knowing if they were compatible, but they are. I have really strong signal now everywhere in my apartment. Followed the instructions provided above my Troyww. Really happy with how it all panned out.
Summary: After suffering dropouts for months with a big pond ultimate 312 modem connected to a draytek 2100vn. I bought the dlink dir 412 and connected the big pond ultimate. No dropouts for months...very happy.
Summary: This works with the big pond ultimate 312U trick is to remove the apn the modem adds itself screenshot of config http://i.imgur.com/ZVFtB.png I got this info off of Whirlpool and it is bang on. Worked straight out of the box and didn’t need a firmware update . Wireless isn’t strong but reliable so far .