This evening, before I went out for dinner with my family, I turned off the router.
When I returned home, I turned on the router and computer, surprisingly, I found everything returned to normal, I could open the web page and the message did not appear again.
apples52,
Thank you for your response, I was googling this morning but there is no definite answer.
I know the internet service provider of my area is updating their system to LTE. Hopefully this issue will disappear later.
I also encountered this issue this morning when I was trying to open the page of online qoute of a financial company,the message is
The requested URL was rejected. If you think this is an error, please contact the webmaster.
Your support ID is: 5378948895133347790
It is strange the web page can be easily opened by 3G.
It seems the issue has connection with the IP address through which the request is made.
If you have solution to the isuue, please post