Dear Forum,
I am seeing a rather obscure behavior with my AX201 based WiFi, for which I wanted to ask for feedback.
Whats irritating is that, disabling the wireless card (using the Windows 11 taskbar, see [0]) the IP address that the interface got assigned during operation (via DHCP, not static) will remain reachable [1].
However, the system itself (Windows 11) is showing no traces of this IP. Not assigned to a network adapter or anywhere else!?! [1]. Also, it was verified that the system is completely offline.
This is somewhat counter intuitive. When an interface is down, has no IP address assigned, why should "anything" inside the system continue to answer to that historic IP without network connection?
Furthermore, this is obviously also not consistent as it is not aligned with the state a system is in after a fresh boot, without the respective network connected.
It is easy to reproduce this. Simply:
0. on my PC with a Intel AX201 WiFi card
1. connect system to a WiFi network
2. determine the IP (v4) address the system received (ipconfig, see [1] for example)
3. disable WiFi via Windows (see [0])
4. ping the IP (v4) address and see "someone" respond (see [1] for an example)
5. verify no part of the system is holding this address (see ipconfig and arp in example [1])
NOTE: The effect and procedure are to be seen from "inside" the PC exposing the problem. I.e. the system is completely offline during testing, still reacting to an IP that it should only be "owning" when actually connected to a specific network.
I am running a Windows 11, on an HP Laptop with an Intel AX201, latest version Windows, all patches installed, latest version Intel drivers.
It seems that the (Intel) WiFi is not "unregistering" its IP properly (?) - or not "disabling" the adapter or tearing down the interface really?
There seems to be at least one other forum entry where a used is experiencing something similar [2].
Any thoughts on this?
Any ideas how to further debug?
[0] Windows-taskbar after Disabling WiFi:
[1] Sequence of commands on a shell to show the issue:
PS C:\Windows\System32> ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : Laptop-[CENSORED]
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : fritz.box
Unknown adapter Local Area Connection:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : TAP-Windows Adapter V9 for OpenVPN Connect
Physical Address. . . . . . . . . : 00-FF-[PRIVATE]
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Unknown adapter OpenVPN Connect DCO Adapter:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : OpenVPN Data Channel Offload
Physical Address. . . . . . . . . :
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Local Area Connection* 3:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #4
Physical Address. . . . . . . . . : 54-14-[PRIVATE]
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Local Area Connection* 13:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #5
Physical Address. . . . . . . . . : 56-14-[PRIVATE]
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Mobile Broadband adapter Cellular:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Generic Mobile Broadband Adapter
Physical Address. . . . . . . . . : 84-9B-[PRIVATE]
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Wi-Fi:
Connection-specific DNS Suffix . : fritz.box
Description . . . . . . . . . . . : Intel(R) Wi-Fi 6 AX201 160MHz
Physical Address. . . . . . . . . : 54-14-[PRIVATE]
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2a02:[PRIVATE](Preferred)
Lease Obtained. . . . . . . . . . : Sonntag, 1. September 2024 13:41:58
Lease Expires . . . . . . . . . . : Sonntag, 1. September 2024 15:23:22
IPv6 Address. . . . . . . . . . . : 2a02:[PRIVATE](Preferred)
IPv6 Address. . . . . . . . . . . : fd0e:[PRIVATE](Preferred)
Temporary IPv6 Address. . . . . . : 2a02:[PRIVATE](Preferred)
Temporary IPv6 Address. . . . . . : fd0e:[PRIVATE](Preferred)
Link-local IPv6 Address . . . . . : fe80::[PRIVATE]%7(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.22.40(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Sonntag, 1. September 2024 13:41:57
Lease Expires . . . . . . . . . . : Sonntag, 29. September 2024 13:44:15
Default Gateway . . . . . . . . . : fe80::[PRIVATE]%7
192.168.22.1
DHCP Server . . . . . . . . . . . : 192.168.22.1
DHCPv6 IAID . . . . . . . . . . . : 743707891
DHCPv6 Client DUID. . . . . . . . : 00-01-[PRIVATE]
DNS Servers . . . . . . . . . . . : fd0e:[PRIVATE]
2a02:[PRIVATE]
192.168.22.1
NetBIOS over Tcpip. . . . . . . . : Disabled
PS C:\Windows\System32> ping 192.168.22.40
Pinging 192.168.22.40 with 32 bytes of data:
Reply from 192.168.22.40: bytes=32 time<1ms TTL=128
Reply from 192.168.22.40: bytes=32 time<1ms TTL=128
Reply from 192.168.22.40: bytes=32 time<1ms TTL=128
Reply from 192.168.22.40: bytes=32 time<1ms TTL=128
Ping statistics for 192.168.22.40:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
PS C:\Windows\System32> arp -g
Interface: 192.168.22.40 --- 0x7
Internet Address Physical Address Type
192.168.22.1 3c-37-[PRIVATE] dynamic
192.168.22.20 90-09-[PRIVATE] dynamic
192.168.22.32 48-9e-[PRIVATE] dynamic
192.168.22.114 00-22-[PRIVATE] dynamic
192.168.22.249 54-2a-[PRIVATE] dynamic
224.0.0.22 01-00-5e-00-00-16 static
224.0.0.251 01-00-5e-00-00-fb static
224.0.0.252 01-00-5e-00-00-fc static
239.255.255.250 01-00-5e-7f-ff-fa static
255.255.255.255 ff-ff-ff-ff-ff-ff static
PS C:\Windows\System32> echo "WiFi disabled via Windows Taskbar"
WiFi disabled via Windows Taskbar
PS C:\Windows\System32> ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : Laptop-[PRIVATE]
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Unknown adapter Local Area Connection:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : TAP-Windows Adapter V9 for OpenVPN Connect
Physical Address. . . . . . . . . : 00-FF-[PRIVATE]
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Unknown adapter OpenVPN Connect DCO Adapter:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : OpenVPN Data Channel Offload
Physical Address. . . . . . . . . :
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Local Area Connection* 3:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #4
Physical Address. . . . . . . . . : 54-14-[PRIVATE]
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Local Area Connection* 13:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #5
Physical Address. . . . . . . . . : 56-14-[PRIVATE]
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Mobile Broadband adapter Cellular:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Generic Mobile Broadband Adapter
Physical Address. . . . . . . . . : 84-9B-[PRIVATE]
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Wi-Fi:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : fritz.box
Description . . . . . . . . . . . : Intel(R) Wi-Fi 6 AX201 160MHz
Physical Address. . . . . . . . . : 54-14-[PRIVATE]
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
PS C:\Windows\System32> ping 192.168.22.40
Pinging 192.168.22.40 with 32 bytes of data:
Reply from 192.168.22.40: bytes=32 time<1ms TTL=128
Reply from 192.168.22.40: bytes=32 time<1ms TTL=128
Reply from 192.168.22.40: bytes=32 time<1ms TTL=128
Reply from 192.168.22.40: bytes=32 time<1ms TTL=128
Ping statistics for 192.168.22.40:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
PS C:\Windows\System32> arp -g
No ARP Entries Found.
[2] Spiceworks forum entry on the same topic:
https://community.spiceworks.com/t/getting-a-ping-when-everything-is-disconnected-why/687691/10
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