I've got an issue with connecting my Windows 10 desktop PC to my router via a switch. When I couple the cables that lead to the router and the switch at the network box directly, I get no issues and the connection is stable. However, when I add the switch (a Ubiquiti USW Flex Mini) my desktop does not see the network at all. I've verified that the issue is with my computer, as I have tried using two other switches (a TP-Link and a Netgear, both unmanaged, the Ubiquiti is managed), and still cannot seem to connect. I also cannot connect the Ubiquiti switch via UniFi. I have been able to connect to the Internet using two other computers, a Macbook Pro and another Win 10 laptop.
As far as I can tell:
Windows IP Configuration
Host Name . . . . . . . . . . . . : DESKTOP-LIN7QMV
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Ethernet:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GbE Family Controller
Physical Address. . . . . . . . . : 00-D8-61-D4-8D-28
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Ethernet adapter vEthernet (Default Switch):
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Hyper-V Virtual Ethernet Adapter
Physical Address. . . . . . . . . : 00-15-5D-00-9D-EE
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::8890:5518:bd01:bb69%50(Preferred)
IPv4 Address. . . . . . . . . . . : 172.25.240.1(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.240.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 838866269
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-27-7C-45-62-00-D8-61-D4-8D-28
DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Enabled
Wireless LAN adapter Local Area Connection* 11:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #3
Physical Address. . . . . . . . . : CC-D9-AC-85-B2-FA
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Local Area Connection* 12:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #4
Physical Address. . . . . . . . . : CE-D9-AC-85-B2-F9
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Wi-Fi 2:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) Wireless-AC 9260 160MHz
Physical Address. . . . . . . . . : CC-D9-AC-85-B2-F9
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::c9d5:8a98:4b7d:fda9%8(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.16(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Friday, August 26, 2022 9:55:05 PM
Lease Expires . . . . . . . . . . : Saturday, August 27, 2022 10:01:33 PM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 718068140
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-27-7C-45-62-00-D8-61-D4-8D-28
DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled
If there's any more information that is needed, just feel free to ask.
As far as I can tell:
- DHCP is enabled and the computer in question does receive an IP address on both the wireless and wired networks (it is shown in the DHCP client list of my router, a Linksys AX5400 Wi-Fi Router E9450).
- I have checked here and here.
- I have checked the logs, there is a 0x79 error for the LAN NIC
- I have tried to apply a static IP address both inside and outside the DHCP range of the router to no avail.
- I have tried disabling Windows Firewall and nothing happened.
- When I try to ping the LAN NIC or the switch through WI-FI on the same computer, I get back "Destination host unreachable". Which makes sense to me because I can't ping anything when WI-FI is off.
- The same thing happens on another laptop while on WI-FI. (This laptop was able to connect to the Internet when it was connected on the switch.)
- The cables are intact.
Windows IP Configuration
Host Name . . . . . . . . . . . . : DESKTOP-LIN7QMV
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Ethernet:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GbE Family Controller
Physical Address. . . . . . . . . : 00-D8-61-D4-8D-28
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Ethernet adapter vEthernet (Default Switch):
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Hyper-V Virtual Ethernet Adapter
Physical Address. . . . . . . . . : 00-15-5D-00-9D-EE
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::8890:5518:bd01:bb69%50(Preferred)
IPv4 Address. . . . . . . . . . . : 172.25.240.1(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.240.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 838866269
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-27-7C-45-62-00-D8-61-D4-8D-28
DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Enabled
Wireless LAN adapter Local Area Connection* 11:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #3
Physical Address. . . . . . . . . : CC-D9-AC-85-B2-FA
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Local Area Connection* 12:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #4
Physical Address. . . . . . . . . : CE-D9-AC-85-B2-F9
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Wi-Fi 2:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) Wireless-AC 9260 160MHz
Physical Address. . . . . . . . . : CC-D9-AC-85-B2-F9
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::c9d5:8a98:4b7d:fda9%8(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.16(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Friday, August 26, 2022 9:55:05 PM
Lease Expires . . . . . . . . . . : Saturday, August 27, 2022 10:01:33 PM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 718068140
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-27-7C-45-62-00-D8-61-D4-8D-28
DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled
If there's any more information that is needed, just feel free to ask.