Do you mean TL-WR 841HP? < http://www.tp-link.com/en/products/details/cat-9_TL-WR841HP.html>

That seems tplink's router products. Email support@tp-link.com to let them help you

This is truly remarkable.............................!!

Just as I was desperate to try to call the folks in Richmond Hill I thought I turn on my iPad and believe it or not but suddenly the Wi-Fi is working.....!!

As I type this I am still stunned and wonder how that came about?

This is a follow up on my stunning finding of having Wi-Fi again....................so what happened I asked myself.
When we bought the unit I was asked where are you going to use it and the answer was in our apartment.
When it suddenly did not work again we red some of the fine print and now I realize why it stopped.
According to the fine print we have 120 minutes each day to make use of the Wi-Fi which in our case is more than sufficient.
For email etc. we use a desktop which doesn't rely on Wi-Fi.
However on the weekend our 2 grand daughters both having iPads used it for hours............!!
Thus we were cut off........................I think...........!!
Any comment will be appreciated.

Thank you