Homegroup issues after factory reset

[Joykins]

I have a Acer Win 7 laptop and when I bought it nearly a year ago I set up a homegroup on it. Let's call it Homegroup1. I was negligent and did not record the homegroup password, or, if I did, I don't remember where. I had some issues with the laptop and sent it in for warranty work, where they replaced the hard drive and required a factory reset. When I did the factory reset, I set up a 2nd homegroup as prompted. Call this Homegroup2. My husband joined Homegroup2 on his laptop and has the password there. And all went swimmingly until it became obvious the laptop repair didn't actually fix the problem and I had to send it back in AGAIN. It returned with the same hard drive and settings, but I no longer seem to be able to access or detect Homegroup2. I am, however, detecting Homegroup1, which has an unknown-to-me password and is basically being run by a nonexistent PC (since the computer running it got reset and now has a new name and identity). I tried to enter Homegroup2 Password and Windows rejects it as the wrong password.

I would like to delete ALL these homegroups and try again because this is ridiculous. But I can't get the "original" PC (the one I had to reset) to leave the homegroup and therefore delete it, because apparently to delete the homegroup all computers have to leave it. Is there some way to do this? Because it seems like I'm in a catch-22 devised by evil geniuses.

Also I am unable to "detect" the printer on the network anymore, is that because I am not in the homegroup? All these computers and the printer are attached to the same network. I had no problem with this before the warranty work. All I think I really needed was a new screen (irony).

 

[Joykins]

I suppose I should mention my husband was messing around with routers during this; we replaced an old one with a FIOS one and added a higher speed one to the FIOS one to actually connect to, to supposedly make everything super fast. But I'm uncertain about the timing.

 

[chev65]

I suppose I should mention my husband was messing around with routers during this; we replaced an old one with a FIOS one and added a higher speed one to the FIOS one to actually connect to, to supposedly make everything super fast. But I'm uncertain about the timing.

The secondary router will cause problems unless you disable DHCP on the secondary router, it should also be plugged into a LAN port rather than the WAN port>LAN port to LAN port.

The can't leave the Homegroup problem can be solved by deleting all files which reside in the Peer Networking folder, follow the link below for directions on this.

http://www.sevenforums.com/network-sharing/62176-homegroup-not-working.html#post557185