The link given by Ada is the right one. You have find out MAC OSX version and download the corresponding one.

However, I want to use the flash disk for backup and store binary files, etc. Cannot do that. Storage Sharing/FTP Server/Media Server/Printer Server are what USB sharing supports.

I want computers (and televisions) on the network to play movies on the flash disk and they don't use FTP to access files. Media server? http://www.tp-link.com/en/faq-731.html

http://forum.tp-link.com/showthread.php?78963-Can-someone-post-their-settings-config-file-for-Archer-c7-v2-as-an-AP&p=156734&viewfull=1#post156734 If you configure the router as an access points, its...

What's the firmware version? Is it the latest one? If it does, report the problem here with the topology. http://ticket.tp-link.com/index.php?/Tickets/Submit

The router is faulty as it doesn't assign correct IP address to clients. Kind reminding: This is TP-LINK forum...Any TP-LINK products there?