Please confirm that you have checked the usual connectivity requirements as below:
1. IPV4 configuration is either set to a valid, non conflicting address or automatic (DHCP). Check if the netmask matches the netmask from the other working computers. To confirm this, ping the other hosts by address.
2. DNS. Check that this PC can solve the names of the others by pinging by hostname. It should resolve to the correct IP addresses for each one.
3. Firewall. Check that windows firewall allows incoming connections on ports used by file sharing and network discovery. Since it it a home network, you could disable firewall this network.
4. Windows services. Check that file sharing and network discovery are enabled.
if none of this works, pleas post the outcome so we can investigate further.
1. I checked the IPV4 value with ipconfig/all and it set to the address of the new PC.
Windows IP Configuration
Host Name . . . . . . . . . . . . : Brandy
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Ethernet:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Killer E2400 Gigabit Ethernet Controller
Physical Address. . . . . . . . . : B8-85-84-B0-40-D6
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2603:9001:6c07:cf00:2571:547a:9550:3b91(Preferred)
Temporary IPv6 Address. . . . . . : 2603:9001:6c07:cf00:200c:3218:c15c:1337(Deprecated)
Temporary IPv6 Address. . . . . . : 2603:9001:6c07:cf00:81ba:f8b3:68e2:285d(Preferred)
Temporary IPv6 Address. . . . . . : 2603:9001:6c07:cf00:acd2:4b1b:cf6e:957f(Deprecated)
Link-local IPv6 Address . . . . . : fe80::2571:547a:9550:3b91%15(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.17(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Friday, April 26, 2019 9:11:02 AM
Lease Expires . . . . . . . . . . : Sunday, April 28, 2019 10:11:07 AM
Default Gateway . . . . . . . . . : fe80::5eb0:66ff:fe0c:1f57%15
192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 129533316
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-24-2D-A0-CC-B8-85-84-B0-40-D6
DNS Servers . . . . . . . . . . . : 209.18.47.62
209.18.47.61
NetBIOS over Tcpip. . . . . . . . : Enabled
Wireless LAN adapter Wi-Fi:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Killer Wireless-n/a/ac 1535 Wireless Network Adapter
Physical Address. . . . . . . . . : 9C-B6-D0-C2-26-3F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Local Area Connection* 9:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address. . . . . . . . . : 9E-B6-D0-C2-26-3F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Local Area Connection* 10:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #2
Physical Address. . . . . . . . . : AE-B6-D0-C2-26-3F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
2. I did a ping of a PC I can not access with thee results:
Pinging Buster [fe80::1c9a:bcb6:2d8e:c7ce%15] with 32 bytes of data:
Reply from fe80::1c9a:bcb6:2d8e:c7ce%15: time<1ms
Reply from fe80::1c9a:bcb6:2d8e:c7ce%15: time<1ms
Reply from fe80::1c9a:bcb6:2d8e:c7ce%15: time<1ms
Reply from fe80::1c9a:bcb6:2d8e:c7ce%15: time<1ms
Ping statistics for fe80::1c9a:bcb6:2d8e:c7ce%15:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
3. I turned off the firewall with the same result: \\BUSTER is not accessible ...
4. file sharing and network discovery are enabled.