(Before that, you can ping each other first. And the following settings have been made according to the request, but still can not access other computers in the local area network in the network neighborhood (the shared files in the own computer can be accessed in the network neighborhood). Please call experts! ! ! ! ! ! ! ! ! 1. Open the guest account. 2. Allow Guest users to access the machine: Open the Group Policy Editor and select Computer Configuration → Windows Settings → Security)