In simple home network, how it is possible to ping 192.168.1.1
and get a response from 192.168.0.34? Mikrotik router RB951G-2HnD (mipsbe) firmware v. 3.18.
- The router sits at gateway IP address 192.168.1.1
- Subnet mask is 255.255.255.0
Accompanying symptoms:
- All devices are only on 192.168.1.X so 192.168.0.X is not used.
- All known devices except of my PC have static IP addresses assigned manually, no other dynamically assigned ones (DHCP) are currently present in the network.
- Internet connection at the PC looks to be interrupted – for no obvious reason (i.e. after no obvious action from my side; + there seems to be no real outage from the provider).
- ipconfig shows that IP configuration is lost (there are no devices left which keep any IP config).
ipconfig /release & ipconfig /renew
hangs atipconfig /renew
and times out.- IMPORTANT: Internet connection will be restored only if I disconnect and reconnect wireless connection. (Then it will be restored immediately and
ping 192.168.1.1
again returns response from 192.168.1.1 as expected.) - On my PC I'm using ESET Security suite (firewall, antivirus, etc. ... maybe not related)
- There's nothing poisonous in
.hosts
file. - I think there are no other DHCP devices on the network. Currently I'm the only PC on the network, there is one managed switch (mgmt page seems to be unreachable, strange) and one IP phone connected to the switch (reachable).
- After I recovered the connection (as mentioned above)
- █ If I disconnect from the network, then unlike 192.168.1.1, IP 192.168.0.34 is still present and throwing the above general failures.
It looks there is a problem with the PC rather than with the network, but how can I find what is that strange 192.168.0.34
which persists after disconnecting and occassionally also shadows the gateway?
ipconfig /all
: (with some names redacted as ********)
Windows IP Configuration Host Name . . . . . . . . . . . . : idea-PC-**** Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Mixed IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No PPP adapter ********: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : ******** Physical Address. . . . . . . . . : DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 192.168.160.103(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.255 Default Gateway . . . . . . . . . : DNS Servers . . . . . . . . . . . : 192.168.160.1 85.159.106.3 NetBIOS over Tcpip. . . . . . . . : Enabled Wireless LAN adapter Local Area Connection* 12: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter Physical Address. . . . . . . . . : 20-68-9D-**-**-** DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Ethernet adapter OpenVPN: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : TAP-Win32 Adapter V9 Physical Address. . . . . . . . . : 00-FF-CB-**-**-** DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Ethernet adapter Team Viewer VPN: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : TeamViewer VPN Adapter Physical Address. . . . . . . . . : 00-FF-D3-**-**-** DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Ethernet adapter Bluetooth Network Connection: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : ********.com Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network) Physical Address. . . . . . . . . : 20-68-9D-**-**-** DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Wireless LAN adapter Wi-Fi: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Realtek RTL8723A Wireless LAN 802.11n USB 2.0 Network Adapter Physical Address. . . . . . . . . : 20-68-9D-**-**-** DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::298a:5d0a:6108:9e10%3(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.198(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : 10. august 2016 16:49:01 Lease Expires . . . . . . . . . . : 10. august 2016 18:05:23 Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DHCPv6 IAID . . . . . . . . . . . : 337668253 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1F-2C-5C-DA-20-68-9D-**-**-** DNS Servers . . . . . . . . . . . : 192.168.1.1 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.{577E0F04-78FE-45D4-8CC7-370D517FAD06}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-**-**-** DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Local Area Connection* 14: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-**-**-** DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fd:cfe:3d8e:a72b:db42(Preferred) Link-local IPv6 Address . . . . . : fe80::cfe:3d8e:a72b:db42%18(Preferred) Default Gateway . . . . . . . . . : :: DHCPv6 IAID . . . . . . . . . . . : 301989888 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1F-2C-5C-DA-20-68-9D-**-**-** NetBIOS over Tcpip. . . . . . . . : Disabled Tunnel adapter isatap.{79A29C84-EF40-4CAA-B186-B9B323C39B2C}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.********.com: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : ********.com Description . . . . . . . . . . . : Microsoft ISATAP Adapter #6 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes
192.168.1.1
? And also check thehosts
file.