Hi Victor,

In order to fix this new wireless network not detected on your laptop, you can follow the below methods and see if it works for you.

Method 1: Visit Action Center

Click the flag icon in the Notification area of the Taskbar and click Open Action Center. Select Troubleshooting > Network and Internet, and click HomeGroup to launch a troubleshooter.

• Check your network type

HomeGroups will only work on networks designated as Home not Public or Work. Verify this on each PC by opening the Network and Sharing Center – if necessary, click the link under the network name and select Home.

Method 2: Workgroup settings

It shouldn't matter, but verify that each PC is on the same workgroup – view and change your workgroup by right-clicking Computer and selecting Properties, then click "Change settings" if necessary.

• Public Folder sharing options

Click "Change advanced sharing settings" in the Network and Sharing Center – expand "Home or Work", scroll down and verify that both Network Discovery and "Public Folder sharing" are On.

Method 3: Check the Firewall

Networking problems can often be traced to your firewall. If you can connect with the firewall switched off, you'll need to tweak its settings so it doesn't block network traffic – visit the firewall vendor's website for more help and advice if necessary.

Method 4: Check services

Press [Windows] + [R], type "services.msc" and press [Enter]. Check the following services are running:
HomeGroup Listener, HomeGroup Provider, Peer Name Resolution Protocol, Peer Networking Grouping and Peer Networking Identity Manager.

Method 5: Forget HomeGroups

Remove the HomeGroup from your main computer, then click "Change advanced sharing settings" and configure your network manually. Once this is done, you can then share any individual folder by right-clicking it and choosing Share with Specific people.

I hope this helps.
Regards,
Lokesh