Thanks for the update.
Please open Control Panel > Network and Sharing Center > Advanced sharing settings > Make sure Network discovery and File and printer sharing are turned on.
Then, try accessing the server directly by IP address. Click Start > Open Run >Type: \your server IP
Also make sure your Wi-Fi network is set to Private, not Public:
Settings > Network & Internet > Wi-Fi > Your network > Network profile type > Private
If it does not work, please tell me the exact error message you receive when trying to open the server.