One device won't connect

I use a BT Home Hub 6 to connect several devices (iPads etc) & one PC. All wifi devices connect to Internet without problem but recently the PC won't connect to Internet neither via usual Ethernet nor wifi. I can access the admin page of BT Hub6 but not Internet. I have tried ipconfig/flushdns > ipconfig/registerdns > ipconfig/release > ipconfig/renew with no change.
I previously tried noip on my PC but have uninstalled. I also tried system reset back to when PC was connecting and before recent various auto updates & again zilch.
Any help welcomed
I use win 10 with Windows Defender,360 total security & Malwarebytes Anti-Exploit which played well together until now. I have also tried to close these but still can't get past HH6

Edited by bobrey (Sat 17-Feb-18 06:48:55)

Try a reset of the TCP/IP stack as follows:-
Run a Command Prompt as administrator
At the command prompt, run the following commands
1. Type netsh winsock reset and press Enter.
2. Type netsh int ip reset and press Enter.
3. Type ipconfig /release and press Enter.
4. Type ipconfig /renew and press Enter.
Then check to see if that fixes your connection problem

I had tried these steps before without success.
I repeated again (including restart where required after windsock reset) but despite this again no success. I did a Windows Network Diagnostic check & got same error message � The DNS server isn�t responding � & �Your computer is trying to use a DNS server that is incorrect or doesn�t exist�.
I have VirtualBox installed so as well as Ethernet & Bluetooth network connections listed there is also a VirtualBox Host-Only connection listed.
The Ethernet connection up addresses (after windsock etc) shows only an IPv6 address whilst VirtualBox has both IPv4 & IPv6 addresses. The IPv6 addresses are different but both start fe80 .
Getting more & more perplexed so any ideas welcome

What are the results of a ipconfig.

In reply to a post by dwg1:

What are the results of a ipconfig.

After flush>register >release>renew

My Ethernet lan connection 3 shows:-
Connection specific DNS Suffix:Home
IPv4 address: 192.168.1.96
Subnet Mask: 255.255.255.0
Default Gateway:196.168.1.254

VirtualBox Host-Only Network 2 shows:-
Connection Specific : nothing
Link local IPv6 Address:fe80etcetc
Autoconfig Ipv4 Address:169.254.75.44
Subnet Mask:255.255.0.0
Default Gateway: nothing

I had already disabled IPv6 in Connection 3 (lan cable)
Also autoconfig disabled ditto
Hope this makes sense

Which firewall are you using, Windows or a 3rd party?

Sorry could you please post the results of a ipconfig/all

Try this link:-

https://forums.virtualbox.org/viewtopic.php?f=6&t=69287

As you aren't using IPv6 on your LAN adapter, it might be a idea to also disable IPv6 on the virtual adapter too.

I take it the Default Gateway is a typo. Should be 192.168.1.254 to be on the same subnet as IPv4 address

I use standard windows firewall and can access BT HH6 hub manager

In reply to a post by Terry74:

I take it the Default Gateway is a typo. Should be 192.168.1.254 to be on the same subnet as IPv4 address

Sorry don't understand your point since default gateway of connection 3 ( lan) is :-

My Ethernet lan connection 3 shows:-
Connection specific DNS Suffix:Home
IPv4 address: 192.168.1.96
Subnet Mask: 255.255.255.0
Default Gateway:196.168.1.254

To be able to access the outside world you go through the gateway. you have to be on the same subnet, therefore, the gateway of your pc should be set to 192.168.1.254 ie the address of your router.

I have uninstalled VirtualBox still same issue.
After ipconfig/all I get following :-

Win IP Config
Host name:Bob-PC
Primary DNS Suffix:
IP Routing Enabled:No
Wins proxy enabled: No
DNS Suffix Search List:home

Ethernet adaptor Ethernet 2

Media State: Media disconnected
Connection-specific DNS Suffix:
Description: Tap-Windows Adapter V9
Physical address: 00-FF etc etc
DHCP enabled: Yes
Autoconfig enabled: Yes

Ethernet adapter Ethernet 3:

Media State: Media disconnected
Description: Realtek PCIe GBE Family Controller
Physical address:54-04 etc etc
DHCP enabled : Yes
Autoconfig enabled: Yes
IPv4 address: 192.168.1.96 (preferred)
Subnet Mask: 255.255.255.0
Lease Obtained : Wed,Feb 21 7:28am
Lease expires: Thursday
Default Gateway: 192.168.1.254
DHCP Server: 192.168.1.255
DNS Servers 208.67.222.222
208.67.220.220
NetBIOS over Tcpip : Enabled

Ethernet adapter Ethernet:

Media State : Media disconnected
ConnectionConnection-specific DNs suffix:
Description : VPN Client Adapter - New
Physical address : 00-AC-10 etc etc
DHCP Enabled: Yes
Autoconfig Enabled: Yes

This took some copy typing so if anything unclear or any queries please let me know.
Any ideas of cause or problem?

With Virtualbox uninstalled try ipconfig/release and ipconfig/flushdns. If this doesn't resolve matters try switching your openDNS servers to another one, might be worth entering your router's IP for the second DNS (192.168.1.254) therefore using your router's selected DNS servers instead. If still no joy try a tracert.

No need to retype stuff from the DOS command prompt how to copy and paste

https://www.laptopmag.com/articles/how-to-windows-10...

Set your DNS servers to the default ISP ones - i.e.,, auto/DHCP. This might be your problem...

As I've pointed out in your other thread that you created, it would be better to re-install the network drivers. Virtualbox often makes changes to the network driver settings and even uninstalling Virtalbox will not get the default settings back, only a complete driver re-install will.