"Media disconnected" connection issue

Hello,

for some time now, I have been experiencing internet connection issues.
At home, I am connected via Wi-Fi to a BBox and everything works fine.

I work in a coworking space, and for several days now, I have been unable to connect. There are two networks: SFR and Livebox.
I can't connect to either of them, and I am the only one having this problem.
The error messages vary. Sometimes I see:
"Windows cannot communicate with the device or resource"
"The primary DNS is not responding"
"Wi-Fi does not have a valid IP configuration"...
I tried to connect with an Ethernet cable: same problem

I should mention that I am using Windows 10.
I have done all the updates, for Windows, my network card, etc.

Here are my configuration details:
Microsoft Windows [version 10.0.14393]
(c) 2016 Microsoft Corporation. All rights reserved.

C:\WINDOWS\system32>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . : Déborah
Primary DNS Suffix . . . . . . :
Node Type . . . . . . . . . . : Hybrid
IP Routing Enabled . . . . . . : No
WINS Proxy Enabled . . . . . . : No

Ethernet Card Ethernet:

Media Status. . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix. . . :
Description. . . . . . . . . . . : Qualcomm Atheros AR8172/8176/8178 PCI-E Fast Ethernet Controller (NDIS 6.30)
Physical Address . . . . . . . : 20-25-64-37-6C-75
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled. . . : Yes

Wireless Network Card Local Area Connection* 11:

Media Status. . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix. . . :
Description. . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address . . . . . . . : 1A-E3-47-77-98-09
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled. . . : Yes

Wireless Network Card Wi-Fi:

Connection-specific DNS Suffix. . . :
Description. . . . . . . . . . . : Qualcomm Atheros AR956x Wireless Network Adapter
Physical Address . . . . . . . : 28-E3-47-77-98-09
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled. . . : Yes
Link-local IPv6 Address . . . . : fe80::ec2e:fc00:db23:fb64%15(preferred)
IPv4 Autoconfiguration Address . . : 169.254.251.100(preferred)
Subnet Mask. . . . . . . . . . . . : 255.255.0.0
Default Gateway. . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 254337863
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-93-4A-81-20-25-64-37-6C-75
DNS Servers. . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . : Enabled

C:\WINDOWS\system32>

Thank you in advance for your help, as I am out of ideas...