Hub secured, but No Internet.

[Keytapper]

For 2 days  I have had the following problem. I can connect my tablet to my BT hub without any problems, but suddenly, I have been unable to connect my PC. To the router. When I open the box showing various routers in my local district mine just shows " BTHub6-****", No Internet, secured. When I run a help prog., I get WiFi: doesn't have a valid IP Configuration. I have tried several 'instant cures' from off the internet without any success. I have tried the WPS WiFi button on the router but nothing. In simple talk, can anyone help? Peter.

[Geek-9pm]

There are people here that can help. But some detail is needed.
Who is your network provider and is this a home or business?
Did you pay your bill? Is your service metered or limited?
What computer do you have?  What sort of Wi-Fi- adapter does it have?
What have you recently changed? **
What is the 'Hub" you describe?
Which other devices work well on the Wi-Fi?
Are many people sharing this network?

** There are rare cases where a new peripheral device will ruin Wi-Fi
https://www.networkcomputing.com/wireless/7-wifi-killers-may-surprise-you/1158544899

[Keytapper]

Thanks for your reply.
Network Provider:  BT.    Home system.    Paid by monthly DD and up to date and UNLIMITED. 
Maker:  HP.  All-in-One PC22.    BT Hub 6 .   Tablet and Smart TV BOTH OK. WiFi Adapter: Realtek
RTL8723BE 802.11 bgn WiFi Adaptor , driver version: 2023.71.1201.2017:
I am the only one on the network.  Peter.

[Mark.]

the message "no internet, secured" would suggest the Hub is pumping out a wifi signal, which you can see and join, but itself is not connecting to the web.
but then you say your tablet and smart TV are OK - do you mean they connect wirelessly to the hub AND can search the web?
what lights are showing ON on the hub?
have you tried rebooting (not resetting) the hub?have you logged into the hub's menu config via a browser and checked it has your username/password correctly entered?and lastly, ring your Provider, they will confirm things their end are OK - like, bill paid, account active, scheduled downtime on the service, line faults, maintenance in the area etc.

[Geek-9pm]

Here is a review of the BT Hub for home.
https://www.youtube.com/watch?v=yTckH6E40-I
It does both WI-Fi bands. Maybe your WI-Fi adapter works only on the low band and the other devices use the high band.
Check to see if the hub is doing both bands and has the same protocol.

[Keytapper]

Thanks to those who replied. I finally contacted the shop that sold me the computer earlier this year. and was invited to take it in. After uploading many updates, the machine is working fine. I have regularly updated the drivers, so I thought using a separate Driver Updater, but the HP Support Assistant, who the shop connected to, soon found out otherwise. Many Drivers had NOT been updated, especially the WiFi ones. You live and learn. Thanks again for taken the trouble to contact me. Peter.

[Geek-9pm]

Keytapper,
Thank you for sharing with us. 

[Mark.]

yeah those 'drive updater' programs (in my experience anyway) should be avoided like the plague.
nothing but snake-oil peddlers.
any more often than not, simply get it wrong or at worst, are malicious.