First of all, IF YOU MAKE A BACKUP of the music you've already ripped you would NOT be back at square one. You'd have everything you have ripped on an external drive that you own. Your computer can play that music. Should you decide to get another device like the B2 you can import that music. So your time isn't wasted.
Second, the reviews didn't mention buying a different wifi dongle, or connectivity issues, or having to buy a USB-toSDcard adapter because most people do not have to do those things. I think that PMB (Paul Bird, who works for Brennan) wrote her a couple of times that the number of people on this forum is about or under 10% of those who hav bought B2 units, and even here on the forum a very small percentage have had the kind of problems you have run into. In at least some (if not many) of those cases the problem, and its resolution, turned out to be external to the B2, i.e., something else in the home network.
As to the SDcard replacement: You should need this only if the software version thatv is already there is too old to support your use of the USB-ethernet adapter that you have, or if (for some bizarre reason) the software on the existing card is corrupted -- which would probably cause much bigger problems, so is unlikely to be the case at present. But yes, Brennan can supply one ready-programmed. You'd still need to take out two screws from the case to swap it in, though -- about as techy and difficult as using a can opener.
You have a chicken-and-egg problem, though, as your B2 seems to have problems communicating with your home network, even though you say that your USB-ethernet adapter got an IP address. Let's try to troubleshoot this logically, please, instead of scattershot.
- When you use the USB-ethernet adapter, WHAT IS THE IP ADDRESS that shows up on the front display of the B2? Remember that the wifi dongle must be REMOVED from the B2 if you are using a wired connection.
- You have written, "I tapped it into the address bar it was not having it." Too many pronouns, not enough antecedents: you typed the IP address seen on the B2 front display into the address bar -- of what? What software, what device? Can you compare the IP address OF THAT DEVICE to the IP address seen on the B2 display? (Hint: the first three number fields -- separated by dots -- should be the same.)
- You have a BT-supplied router. Peter L. has pointed out that if the router *firmware* (the software that runs the router, not the physical router) is older than July, it might have BT's bug that prevents some devices within your home network from communicating to other devices within the same network. That's a router problem that BT can fix remotely.
- Can the B2 communicate with the outside world (the actual Internet, not your home network)? If it has a reasonable-looking IP address, can you (for example) play any of the Internet Radio stations by using the remote control to pick one? If the B2 connects to one of those -- any of them -- then it is properly connected to your network and all the other problems are somewhere else.
No one but you can troubleshoot this problem because it appears to be an interaction (or lack thereof) between the B2 and your home network. We don't have your router or wifi extenders or other devices.
I sincerely hope this is of some help; that's my intent, anyway. -- m.