Can't connect to Homegroup - different types of network

I followed the video's instructions. for the ethernet connection (Local Area Connection) instead of the wireless connection, and the result was that Windows Network Diagnostics (it ran automatically) said "Troubleshooting couldn't identify the problem".

maxie said:

Did you try the Instructions in the Video ? ... Forget about the Troubleshooting side ...

Absolutely. The troubleshooter started automatically after the end of that process.

As I see it you now have 2 different issues:
1) The original HomeGroup question/problem
2) Using a LAN cable (as I suggested ) on the Laptop vs. working WiFi
Right ?

Regarding the original HomeGroup problem:
Can you disconnect the Laptop LAN cable, and reconnect successfully using WiFi ?

I've seen problems with HomeGroup where the "fix" ended up creating a new HomeGroup.
Are you interested in trying that ?

DavidE said:

As I see it you now have 2 different issues:
1) The original HomeGroup question/problem
2) Using a LAN cable (as I suggested ) on the Laptop vs. working WiFi
Right ?

Regarding the original HomeGroup problem:
Can you disconnect the Laptop LAN cable, and reconnect successfully using WiFi ?

I've seen problems with HomeGroup where the "fix" ended up creating a new HomeGroup.
Are you interested in trying that ?

>Can you disconnect the Laptop LAN cable, and reconnect successfully using WiFi ?<

That sounds like your #2 above. The answer is yes, notebook connects to the internet using the wifi, either without the ethernet cable connected.

>I've seen problems with HomeGroup where the "fix" ended up creating a new HomeGroup.
Are you interested in trying that ?<

Sure, It will have to wait until tonight; I have a full day ahead.

So, as I understand it,
- You created a HomeGroup on the Laptop
- The Desktop cannot join the HomeGroup
- There are NO other PCs in the current HomeGroup

To delete the current HomeGroup, and create a new HomeGroup
- Leave the HomeGroup on the Laptop
- CREATE a New HomeGroup on the DESKTOP
- See if the Laptop can join the new HomeGroup

Did you try just leaving the HomeGroup with the Laptop and then joining it again?

I got my two computers able to see the hard drives on the other computer and am able to copy files from the remote computer to the local one. Not using Homegroup, just straight networking. Don't ask me now I did it but I did find and "fix' several settings, probably notably sharing settings and having the same username on both computers.