I was trying to apply port forwarding to a plusnet router but was hit by a blank screen and "Not secure" message. turned off BT Virus Protect and everything OK. Came home and found that BT HomeHubs 2,3,5 were also "Not secure". Can anyone help?
If you mean that the hub management webpage at 192.xxx.xxx.xxx is not secure then, no it isn't but as it can only be accessed from your local network it doesn't need to be
I don't know which browser you're using and I can't speak for all browsers but I do know that Chrome identifies that the hub management page isn't secure immediately to the left of the address bar