No, you have to have a broadband router with home networking for it to work. Then you can just hook up the ethernet port to your home network.
Yes you are being charged for real. The reason is that you have 2 tuners in each and they are not getting money for the second. They will waive it if you hook it to the phone line. As for the broadband, you mentioned a 625 and a 322. Not sure about the 322, but on the 625, there is no ethernet port and so it can't be hooked up to the internet to avoid the fee.for real??? why is that
A reason that I have heard (that makes sense to me) is that if you were to get a Set Top Box for each TV with 4 TVs hooked up, you would be charged $15 for "Extra Outlets." By getting Dual Tuner Boxes, they waive $10 of that by hooking it to a phone line (or the internet on some of the newer models). Thus, they are giving a price break for having it hooked up.It's mainly a "because we can" fee.
The most reasonable explanation I've read is that your receiver sends out technical information that can be used to preemptively diagnose and fix problems. In theory, it makes up for the increased possibility you will have a service call. However, that answer is likely BS.
Then it cost you $5 per month for Each Dual tuner receiver.