Problems accessing the payment processor on booking.com

Norton 360 for Windows
1

Norton360Deluxe 25.8.xx (not trial) ,WIN10, Chrome or edge -no extension setup on browser

Problems accessing the payment processor on booking.com! More precisely: I access the booking page / my account, start the reservation, go through 2-3 steps and give all the necessary data and card details then click next, BUT I AM NOT REDIRECTED TO THE SITE’S PAYMENT PROCESSOR! (the message “payment cannot be processed” appears). Whatever I try, I stay on the same web page and am not redirected further! I solved the problem by disabling Norton protection and the firewall, but this is not a secure / safe solution! WHAT SHOULD I CHANGE IN THE SETTINGS?Thank you !

2

Generally this kind of issue is caused by using a VPN or an ad blocker extension in your browser.

Next time try disabling those two items to see if that helps.

3 
I forgot to mention! I didn't have VPN enabled!I also referred to browser extensions in the first post! They are not installed!I knew that! This is my second year using Norton! I haven't had any problems so far!
4

When you say no extension, are you saying no Norton extensions or no extensions of any kind. Any ad blocker extension could cause issues with payment sites. I see this all the time with my AdBlock Plus. I have to disable it for the payment page to work.