Smart Hub 2 - One PC Dropping Connection

[durango95]

I have an issue that has only made itself apparent in the last 6 months - prior to that everything was fine. I have a Smart Hub 2, various wifi devices,  connected via ethernet to the hub I have a switch sharing the connection to a NAS, PC and laptop.

Issue

• My PC, and only my PC (keeping in mind other ethernet devices connected, routinely loses connection. It was not always the case.
• It is only with the Smart Hub the connection drops - Mini Hub, iPhone etc it'll hold the connection all day
• When ethernet goes, I'm unable to connect via wifi either.
• I'm on both laptop and PC for work and see that PC drops while the laptop doesn't

What I've tried

• Turning off smart setup
• Disabling power management on the network card
• Updating drivers
• Flushing DNS etc.
• Restarting hub
• Restarting PC (sometimes works - perhaps crucially it sometimes works initially and within a minute or two drops)
• Removing BitDefender and reverting to standard MS AV/Firewall 
• Trying new smart hub
• Resetting network
• Reverting to wifi
• Troubleshooting ethernet/wifi adapters

If I leave it, eventually the connection will return. If I reset the network, that usually restores the connection but it will drop again.

Here are some of the examples of messages I get when troubleshooting - it's not always the same, and sometimes fixes are made, but mostly not

Any help is much appreciated, as this is beyond frustrating! 

[licquorice]

Try giving the PC a static IP address of 192.168.1.10, subnet mask 255.255.255.0, gateway 192.168.1.254 on the network card.

[durango95]

I've added in the below, but TBH it's still the same. In fact, I've had to tether to my iPhone just to send this reply 😞

[durango95]

Are there any more suggestions for this? Ideally, I'd switch the smarthub out entirely but with the phones now plugged into it, this doesn't seem so straightforward.

Many thanks

[Keith_Beddoe]

Set DNS Server address to  192.168.1.254

Untick IPv6 on the network properties page.

Reset the home hub to factory default. That may affect the phone registration.

https://www.bt.com/help/broadband/how-do-i-reset-my-bt-hub-to-its-factory-settings

[Les-Gibson]

"My PC, and only my PC (keeping in mind other ethernet devices connected, routinely loses connection. It was not always the case."

Have you tried a new ethernet cable ?

[durango95]

Both changes made. Issue remains. Back tethered to my iphone 😞

[durango95]

Yep - new cable, different port - even a new switch.
Thanks for the suggestion though as it took a while for my brain to click it could be that.

[Les-Gibson]

Have you tried using Google public DNS (8.8.8.8 and 8.8.4.4) or one of the other free public DNS servers 

[xmb]

Try the following to perform a full reset of the network settings on your Windows PC:

• Open Control Panel > Network & Internet > Network and Sharing Centre

• Click on the name of your internet/WIFI connection

• Select "internet protocol version 4" and click on "properties" at the bottom.

• Verify this configuration:

                      o  IP address automatically
                      o  DNS server address automatically

Now reset all the network configurations.

   •   Open a Command Prompt as administrator and enter:

•  ipconfig /flushdns
•  ipconfig /registerdns
•  netsh winsock reset
•  netsh int ip reset
•  ipconfig /renew

Reboot the computer.
After it is also worth checking the connection properties are set for Private rather than Public.