I have been used the internet on my laptop without any problem and it didn’t work all of sudden since yesterday.
It is connected with wireless newtwork card and ‘wireless network connection status’ shows ‘Conneted’ and singnal status shows ‘Excellent’. However, I can access the internet at all.
Does anybody know what the problem is here?
I repeated plugging and unplugging of router and modem power cord but it didn’t work. What should I do?

Please advise. Thank you in advance.