Cant link computers in homegroup

How about the rest of the items in the Note and Warning boxes at the top of the tutorial?

Ok. Go ahead and run the Homegroup troubleshooter to see if it may be able to detect, repair, or report any issues found.

Troubleshooting

If the laptop is using a wireless connection, then double check your router settings to make sure that PCs connected through the router are able to see each other like in step 3 below.

What brand and model number is your router? I'll see if I may be able to help find this setting for it.

Homegroup - Add Computer or Join

Wirless Isolation is unchecked

router manager
N300 Wirless ADSL2+Modum Router mmodel DGN2200

When clicking for step6 thhe 'homegroup' scrteen shot appears not 'capture screen' (hope these screen shots come throu)

If the bottom screenshot is what you got, then that means you are joined to the homegroup.

If you open File Explorer and expand Homegroup in the left navigation pane, do you see the other PC?

Is that screenshot from the same computer as this one below?