If you try third party firmware, you may have 50% possibility to win. But attention, if you done that, then the router will be out of warranty. I learned that from TP-LINK website.

;)

Is there any anti-virus software on your computer ? Maybe you can have a try to uninstall the anti-virus software and then manually install the driver and later reinstall your anti-virus software....

Interesting!!! Not clear about your network topology and your internet servers. the 24.132.133.180 is your wan IP address of the R470T+, or something else ?

Maybe you can have a try to set a solid channel like 6 or 11 on your root router and try to reconfigure the wa830 according to the FAQ357on their website. Good luck !

You are a genius !!!!!!!