Connection lost: A network change has been detected
brupala Posted messages 111927 Registration date Status Membre Last intervention -
Hello,
For the past few days, I have been experiencing an Internet connection issue with 2 cases:
1 - When I am connected, at some point (sometimes several hours later), I lose my connection and this message appears on my screen: a network change has been detected.
2 - Upon starting the PC, the connection does not always establish, and I have to restart my Livebox5 to regain my connection (and I may end up in case 1 afterwards)...
Actions already taken:
Call to 3900 for Orange network connection test = OK
Recommendation from 3900 (Orange Assistance): change the Livebox = OK but the problem is the same with the new Livebox5.
Seen by Orange: IP address issue (without further explanation) = the problem is beyond the box
My connection tests via the "My Livebox" app confirm that the network connection is OK
Actions taken by myself:
1 - I checked via Windows Powershell (admin) for any corrupted files on the windows using these commands.
sfc /scannow (and press Enter)
Dism /Online /Cleanup-Image /ScanHealth (and press Enter)
Dism /Online /Cleanup-Image /CheckHealth (and press Enter)
The result was: "The Windows Resource Protection found no integrity violations."
2 - Resetting the box + my network cards
3 - Deleting browsing data
4 - Flushing the DNS cache:
CMD + enter: ipconfig /flushdns + enter
2 - Antivirus and malware tests with:
- ZHPCleaner
- Windows Defender antivirus
- Malwarebytes
- Farbar's FRST for 64-bit Windows (with analysis from CCM contributors)
Results: no viral contamination
3 - my current LAN:
- Connecting my PC to the Livebox via Ethernet (new cable): only 1 PC connected to the network
- No repeaters or plugs on the LAN
- On Wi-Fi: 2 mobiles + 1 vacuum robot + 1 multimedia gateway connected to the TV (no Orange TV decoder)
System: Windows 10 64 bits
Default browser: Chrome
--------------------------------------------------------------------------------
Does anyone have any idea how to solve this intermittent problem?
Thank you in advance for your help...
34 réponses
- 1
- 2
Hello,
it's not easy, you should test another network card, start with a different cable.
You can try a usb3/gigabit adapter, worst case, it won't be wasted, it can always come in handy
And there you go, voilà ....
But goodness, how annoying the line spacing is!!
Hello Brupala,
That's indeed a good idea I hadn't thought of yet. I will purchase this adapter to validate the network card...
Thank you for this suggestion :)
I am still open to any other hypotheses in the meantime...
Have a great day
(I'm leaving it open because I will confirm or not after receiving and testing with the adapter)
The error message seems to come from Windows and reminds me of something, but it's far back, well before Windows 10, in fact, I'm even wondering if it wasn't on Cisco, in Amerloc of course.
If you could paste us a copy (text preferred) of the output of ipconfig/all see output file at this link when it's working and when it's down.
Here is the report: currently, it works (after restarting the box)
Microsoft Windows [version 10.0.19045.3031]
(c) Microsoft Corporation. All rights reserved.
C:\Windows\system32>ipconfig/all
Windows IP Configuration
Host Name . . . . . . . . . . : DESKTOP-0EJ3NA7
Primary DNS Suffix . . . . . . :
Node Type. . . . . . . . . . : Hybrid
IP Routing Enabled . . . . . . . : No
WINS Proxy Enabled . . . . . . . : No
DNS Suffix Search List.: home
Ethernet Adapter:
Media State. . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix. . . :
Description. . . . . . . . . . . . . . : Realtek PCIe GbE Family Controller
Physical Address . . . . . . . . . . . : 3C-7C-3F-C2-E8-2D
DHCP Enabled. . . . . . . . . . . . . . : Yes
Autoconfiguration Enabled. . . : Yes
Ethernet Adapter 2:
Connection-specific DNS Suffix. . . : home
Description. . . . . . . . . . . . . . : ASIX AX88179 USB 3.0 to Gigabit Ethernet Adapter
Physical Address . . . . . . . . . . . : 20-7B-D2-49-5F-AB
DHCP Enabled. . . . . . . . . . . . . . : Yes
Autoconfiguration Enabled. . . : Yes
Link-local IPv6 Address . . . . . . . .: fe80::9ea6:739:73c9:a598%16(preferred)
IPv4 Address. . . . . . . . . . . . . .: 192.168.1.10(preferred)
Subnet Mask. . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . . . . . : Sunday, May 28, 2023 1:50:03 PM
Lease Expires. . . . . . . . . . . . . : Monday, May 29, 2023 1:50:02 PM
Default Gateway. . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 270564306
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-2B-FF-F5-90-3C-7C-3F-C2-E8-2D
DNS Servers. . . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . . . . : Enabled
Wireless LAN Adapter:
Media State. . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix. . . :
Description. . . . . . . . . . . . . . : Realtek 8821CE Wireless LAN 802.11ac PCI-E NIC
Physical Address . . . . . . . . . . . : 20-0D-B0-4B-3B-E3
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 . . . . . . . . . . . : 20-0D-B0-4B-3B-E3
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 . . . . . . . . . . . : A2-0D-B0-4B-3B-E3
DHCP Enabled. . . . . . . . . . . . . . : Yes
Autoconfiguration Enabled. . . : Yes
C:\Windows\system32>
Here is the conf with the malfunction:
Connection KO after PC restart
Malfunction
Microsoft Windows [version 10.0.19045.3031]
(c) Microsoft Corporation. All rights reserved.
C:\Windows\system32>ipconfig/all
Windows IP Configuration
Host Name . . . . . . . . . . : DESKTOP-0EJ3NA7
Primary DNS Suffix . . . . . . :
Node Type. . . . . . . . . . : Hybrid
IP Routing Enabled . . . . . . . : No
WINS Proxy Enabled . . . . . . . : No
DNS Suffix Search List.: home
Ethernet Adapter Ethernet:
Media State. . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix. . . :
Description. . . . . . . . . . . . . . : Realtek PCIe GbE Family Controller
Physical Address . . . . . . . . . . . : 3C-7C-3F-C2-E8-2D
DHCP Enabled. . . . . . . . . . . . . . : Yes
Autoconfiguration Enabled. . . : Yes
Ethernet Adapter Ethernet 2:
Connection-specific DNS Suffix. . . : home
Description. . . . . . . . . . . . . . : ASIX AX88179 USB 3.0 to Gigabit Ethernet Adapter
Physical Address . . . . . . . . . . . : 20-7B-D2-49-5F-AB
DHCP Enabled. . . . . . . . . . . . . . : Yes
Autoconfiguration Enabled. . . : Yes
Link-local IPv6 Address. . . . .: fe80::9ea6:739:73c9:a598%10(preferred)
IPv4 Address. . . . . . . . . . . . . .: 192.168.1.10(preferred)
Subnet Mask. . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . . . . . : Sunday, May 28, 2023 3:21:11 PM
Lease Expires. . . . . . . . . . . . . : Monday, May 29, 2023 3:21:11 PM
Default Gateway. . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 270564306
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-2B-FF-F5-90-3C-7C-3F-C2-E8-2D
DNS Servers. . . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . . . . : Enabled
Wireless Network Adapter Network Connection* 9:
Media State. . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix. . . :
Description. . . . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address . . . . . . . . . . . : 20-0D-B0-4B-3B-E3
DHCP Enabled. . . . . . . . . . . . . . : Yes
Autoconfiguration Enabled. . . : Yes
Wireless Network Adapter Wi-Fi:
Connection-specific DNS Suffix. . . : home
Description. . . . . . . . . . . . . . : Realtek 8821CE Wireless LAN 802.11ac PCI-E NIC
Physical Address . . . . . . . . . . . : 20-0D-B0-4B-3B-E3
DHCP Enabled. . . . . . . . . . . . . . : Yes
Autoconfiguration Enabled. . . : Yes
Link-local IPv6 Address. . . . .: fe80::ed0c:df07:27e3:42a1%11(preferred)
IPv4 Address. . . . . . . . . . . . . .: 192.168.1.15(preferred)
Subnet Mask. . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . . . . . : Sunday, May 28, 2023 3:21:18 PM
Lease Expires. . . . . . . . . . . . . : Monday, May 29, 2023 3:21:58 PM
Default Gateway. . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 186650032
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-2B-FF-F5-90-3C-7C-3F-C2-E8-2D
DNS Servers. . . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . . . . : Enabled
C:\Windows\system32>
I didn't only test on WiFi because a Contributor other than you suggested I disable the WiFi connection (Brucine in message No. 2). Since then, I've set it back to "normal" by reactivating the WiFi). The result was the same after restarting the PC...
How do I prioritize WiFi over Ethernet? (By simply unplugging the Ethernet cable?)
Restarting on WiFi right after?
Thank you really for your help :)
So,
normally Ethernet is priority,
you can see that in a route print -4
the default route on Ethernet should have a lower metric than the one on Wi-Fi, the lower the metric, the more preferred the route is.
to change the metric, I know it can be done via a netsh interface ip ......
or in adapter options, TCP/IP properties, advanced options, and default metric.
Here is the current result, but I'm not really sure how to make sense of it. The lowest metric seems to be 25...
Microsoft Windows [version 10.0.19045.3031]
(c) Microsoft Corporation. All rights reserved.
C:\Windows\system32>route print
===========================================================================
Interface List
15...3c 7c 3f c2 e8 2d ......Realtek PCIe GbE Family Controller
10...20 7b d2 49 5f ab ......ASIX AX88179 USB 3.0 to Gigabit Ethernet Adapter
11...20 0d b0 4b 3b e3 ......Realtek 8821CE Wireless LAN 802.11ac PCI-E NIC
8...20 0d b0 4b 3b e3 ......Microsoft Wi-Fi Direct Virtual Adapter
7...a2 0d b0 4b 3b e3 ......Microsoft Wi-Fi Direct Virtual Adapter #2
1...........................Software Loopback Interface 1
===========================================================================
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Address Interface Address Metric
0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.10 25
127.0.0.0 255.0.0.0 On-link 127.0.0.1 331
127.0.0.1 255.255.255.255 On-link 127.0.0.1 331
127.255.255.255 255.255.255.255 On-link 127.0.0.1 331
192.168.1.0 255.255.255.0 On-link 192.168.1.10 281
192.168.1.10 255.255.255.255 On-link 192.168.1.10 281
192.168.1.255 255.255.255.255 On-link 192.168.1.10 281
224.0.0.0 240.0.0.0 On-link 127.0.0.1 331
224.0.0.0 240.0.0.0 On-link 192.168.1.10 281
255.255.255.255 255.255.255.255 On-link 127.0.0.1 331
255.255.255.255 255.255.255.255 On-link 192.168.1.10 281
===========================================================================
Persistent Routes:
None
IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
1 331 ::1/128 On-link
10 281 fe80::/64 On-link
10 281 fe80::9ea6:739:73c9:a598/128
On-link
1 331 ff00::/8 On-link
10 281 ff00::/8 On-link
===========================================================================
Persistent Routes:
None
C:\Windows\system32>
Network Destination Network Mask Gateway Address Interface Address Metric 0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.10 25 You have a metric of 25 on your Ethernet interface (1.10) when Wi-Fi is enabled, you should normally have more on it.
The lower metric is prioritized (for the same route, same destination, and same mask).
PS,
I had never noticed, I have an eye for translation (not an ear) but the IPv4 routes are formatted in French, while the IPv6 routes are not, but that has nothing to do with it, it was just a side note, I always use the -4 option for just IPv4 and -6 for IPv6.
In the above measure, WiFi was enabled...
Here is the same measure below after disabling WiFi
Microsoft Windows [version 10.0.19045.3031]
(c) Microsoft Corporation. All rights reserved.
C:\Windows\system32>route print
===========================================================================
List of Interfaces
15...3c 7c 3f c2 e8 2d ......Realtek PCIe GbE Family Controller
10...20 7b d2 49 5f ab ......ASIX AX88179 USB 3.0 to Gigabit Ethernet Adapter
11...20 0d b0 4b 3b e3 ......Realtek 8821CE Wireless LAN 802.11ac PCI-E NIC
8...20 0d b0 4b 3b e3 ......Microsoft Wi-Fi Direct Virtual Adapter
7...a2 0d b0 4b 3b e3 ......Microsoft Wi-Fi Direct Virtual Adapter #2
1...........................Software Loopback Interface 1
===========================================================================
IPv4 Routing Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Address Interface Address Metric
0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.10 25
127.0.0.0 255.0.0.0 On-link 127.0.0.1 331
127.0.0.1 255.255.255.255 On-link 127.0.0.1 331
127.255.255.255 255.255.255.255 On-link 127.0.0.1 331
192.168.1.0 255.255.255.0 On-link 192.168.1.10 281
192.168.1.10 255.255.255.255 On-link 192.168.1.10 281
192.168.1.255 255.255.255.255 On-link 192.168.1.10 281
224.0.0.0 240.0.0.0 On-link 127.0.0.1 331
224.0.0.0 240.0.0.0 On-link 192.168.1.10 281
255.255.255.255 255.255.255.255 On-link 127.0.0.1 331
255.255.255.255 255.255.255.255 On-link 192.168.1.10 281
===========================================================================
Persistent Routes:
None
IPv6 Routing Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
1 331 ::1/128 On-link
10 281 fe80::/64 On-link
10 281 fe80::9ea6:739:73c9:a598/128
On-link
1 331 ff00::/8 On-link
10 281 ff00::/8 On-link
===========================================================================
Persistent Routes:
None
C:\Windows\system32>
Should something be changed and what and where? I’m not very familiar with route print, to be honest :)
In adapter options, TCP/IP properties, advanced options, and default metric: I saw that the metric choice was automatic (currently)
Here is the route print without Ethernet connection (only in WiFi)
This time the value is 35 which prioritizes the Ethernet connection (25) according to what I've understood...
Microsoft Windows [version 10.0.19045.3031]
(c) Microsoft Corporation. All rights reserved.
C:\Windows\system32>route print
===========================================================================
List of Interfaces
15...3c 7c 3f c2 e8 2d ......Realtek PCIe GbE Family Controller
8...20 0d b0 4b 3b e3 ......Microsoft Wi-Fi Direct Virtual Adapter
7...a2 0d b0 4b 3b e3 ......Microsoft Wi-Fi Direct Virtual Adapter #2
11...20 0d b0 4b 3b e3 ......Realtek 8821CE Wireless LAN 802.11ac PCI-E NIC
1...........................Software Loopback Interface 1
===========================================================================
IPv4 Routing Table
===========================================================================
Active Routes:
Network Destination Subnet Mask Gateway Address Interface Address Metric
0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.15 35
127.0.0.0 255.0.0.0 On-link 127.0.0.1 331
127.0.0.1 255.255.255.255 On-link 127.0.0.1 331
127.255.255.255 255.255.255.255 On-link 127.0.0.1 331
192.168.1.0 255.255.255.0 On-link 192.168.1.15 291
192.168.1.15 255.255.255.255 On-link 192.168.1.15 291
192.168.1.255 255.255.255.255 On-link 192.168.1.15 291
224.0.0.0 240.0.0.0 On-link 127.0.0.1 331
224.0.0.0 240.0.0.0 On-link 192.168.1.15 291
255.255.255.255 255.255.255.255 On-link 127.0.0.1 331
255.255.255.255 255.255.255.255 On-link 192.168.1.15 291
===========================================================================
Persistent Routes:
None
IPv6 Routing Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
1 331 ::1/128 On-link
11 291 fe80::/64 On-link
11 291 fe80::ed0c:df07:27e3:42a1/128
On-link
1 331 ff00::/8 On-link
11 291 ff00::/8 On-link
===========================================================================
Persistent Routes:
None
C:\Windows\system32>
Exactly 25 on ethernet and 35 on wifi, these are the default configured values, everything is in its place, your ethernet is indeed prioritized over wifi for outgoing packets.
Incoming packets are not directed to the same IP address (1.15 instead of 1.10) so we're not dealing with the same issue.
For ARP, it's the same, the MAC (physical) addresses are different so there's no problem, it should be able to work even with both connected.
However, I remember that despite this, I noticed recently that my Windows 11 preferred wifi over ethernet in tests I ran, but it was connected to two different IP networks, yours is the same, here I don't know what the criteria is in this case, there might be other factors, or it's load balancing: one connection on each, taking turns, I was testing something else, I didn't delve into that.
The rule in TCP/IP is that you should not have two simultaneous connections on the same IP network, so the wifi should be turned off when you are on ethernet on the same box, then on two different boxes, it’s more complex, but it could be load balancing and it depends on the network as a whole.
Thank you for your feedback, and in this case, the TCP/IP management rules are being respected, and it is indeed my Ethernet that is consistently trying to connect.
If that's not the issue, what new avenues could create this malfunction?
I am not on Windows 11 but rather on 10.
I just restarted the PC after disabling the WiFi, and the Ethernet connection did not start up when the PC rebooted. I had to restart the router, and the Ethernet connection is now working.
This suggests that the issue is not related to the WiFi, I presume...
(I reconnected my Ethernet cable to the PC port, removing the adapter that was in place until now)
Quick info:
I just connected a laptop (adding a PC) via WiFi and it worked on the first try...
However, I notice that in the taskbar, it calls my livebox AE00 2 instead of AE00...
(I don't know why but it's working, and in the connection properties, it is indeed Livebox AE00).
I just did it and I can't remember if I had already done it.
Microsoft Windows [version 10.0.19045.3031]
(c) Microsoft Corporation. All rights reserved.
C:\Windows\system32>netsh interface ip reset
Successfully reset Interface Group.
Successfully reset Compartment.
Successfully reset Control Protocol.
Successfully reset Echo Request.
Successfully reset General.
Successfully reset Interface.
Successfully reset Anycast Address.
Successfully reset Multicast Address.
Successfully reset Unicast Address.
Successfully reset Neighbor.
Successfully reset Path.
Successfully reset Potential.
Successfully reset Policy Prefix.
Successfully reset Neighbor Proxy.
Successfully reset Routing.
Successfully reset Site Prefix.
Successfully reset Sub-interface.
Successfully reset Wake Pattern.
Successfully reset Neighbor Solicitation.
Successfully reset .
Successfully reset .
Successfully reset .
Successfully reset .
Failed to reset .
Access denied.
Successfully reset .
Successfully reset .
Successfully reset .
Successfully reset .
Successfully reset .
Successfully reset .
Successfully reset .
Successfully reset .
Restart the computer to complete this action.
C:\Windows\system32>
Here is the result and I will restart my PC to check :)
I had to restart the Livebox to come back unfortunately...
On the other hand, the laptop I added connects without any problem both via Ethernet and WiFI...
I spoke too soon: the second computer behaves the same way as the desktop PC during new connection attempts...
Why has the livebox changed its name in WiFi mode on the laptop (AE00 2 instead of AE00)? Is it a clue? When connected via Ethernet, it is indeed called AE00...
Yes, but right now I am connected to both PCs: the only thing is that I have to restart the box every time to validate the gateways between the box and the PCs.
Do you have any other recommendations or could anyone here have some?
(I know I’ve been making you think a lot since noon... thank you)
Thinking isn't a problem when it's about concrete things, but here we are dealing with vague concrete, your second PC doesn't help the situation and shifts the problem to the box, while apparently we don't have anything to discriminate it.
We agree that the laptop works well on other connections or even via hotspot if you have a mobile with data.
- 1
- 2
Hello,
And provided that the Box is still turned on, what happens if we disable the Wifi adapter in Settings-Network-Adapter options if that's not the case?
I am testing this solution: I am waiting to see if the connection is stable.
The Ethernet connection seems to hold (but for how long...)
Thank you
I just tested with a usb3/gigabit adapter and the problem remains the same...
So, resetting the issue.
I'm temporarily sticking with the adapter, but the ethernet port is fine...
Anyone has an idea?
Thanks in advance.