Clear the browser cookies and cache you will find the blockchain wallet will works better than others.
disable connected VPN, Clear the browser cookies and update your browser IP.
you can your browser IP using:
1. open cmd and execute this code.
ipconfig /renew
Here is the right solution.I am also having the same issues sometimes then I will clear browser cookies and restarting the brower worked for me.
Nowadays blockchain.info wallet facing many bug issues so I think they need to upgrade their wallet and for the users use only the updated version of browser,google chrome always work well for me so I suggest everyone use the same.
And never use blockchain mobile app they have some serious issues,when I send bitcoins on mobile app the wallet send the bitcoin to my wallet instead os sending to the recipient address but charged me trasnaction fee.