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I have a Windows 11 PC sharing its (wireless LAN) Internet connection via an Ethernet adapter (192.168.137.1/24):

Wireless LAN adapter WLAN:

Connection-specific DNS Suffix  . : router.local
   IPv4 Address. . . . . . . . . . . : 192.168.178.62
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.178.1


Ethernet adapter Ethernet 6:


Connection-specific DNS Suffix  . :
   Link-local IPv6 Address . . . . . : fe80::c473:b359:2bd3:fb0%3
   IPv4 Address. . . . . . . . . . . : 192.168.137.1
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . :

enter image description here

A second PC (connected via Ethernet) has the following setup for its Ethernet adapter:

Ethernet-Adapter Ethernet 2:

Connection-specific DNS Suffix  . :
   Link-local IPv6 Address . . . . . : fe80::51e6:fd36:9678:15fb%12
   IPv4-Adress . . . . . . . . . . . : 192.168.137.2
   Link-local IPv6 Address . . . . . : 255.255.255.0
   Standardgateway . . . . . . . . . : 192.168.137.1

the routing table has the correct entry:

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0    192.168.137.1    192.168.137.2    281
(...)

===========================================================================
Persistent Routes:
  Netzworkaddress          Netmask    Gatewayaddress  Metric
          0.0.0.0          0.0.0.0    192.168.137.1  Standard
===========================================================================

the PC's can ping each other (on 192.168.137.1 and 192.168.137.2) but pinging 8.8.8.8 from PC2 does not work anymore (as far as I remember it used to work after I first tried the setup). Any idea what the problem might be?

I tried:

  • the Internet connection is working for PC1
  • deactivating the firewall on PC1 didn't improve anything
  • deactivating IP6 (both adapters) didn't improve anything
  • tracert just shows timeouts
Albin
  • 11,950

1 Answers1

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Resetting the internet sharing worked fine. Although I ended up creating a WLAN to Ethernet bridge which ended up being much more stable.

Albin
  • 11,950