For TL-WN8200ND, it is not compatible with Mac OS, so it won't work. If it is newly purchased, you may go to the retailer to replace it with another model which is compatible, e.g. T4U.

Maybe you can use this T2U on other computers which there is a driver, and get another adapter which do support the kernal version of your linux

Here is a link for the firmware of 1043ND V4 (EU) : http://www.tp-link.com.pl/download/TL-WR1043ND.html#Firmware Not sure whether this is the one you want. And if you flash to a third-party firmware,...

What's the firmware version of your C7 V2? You may upgrade the firmware if it is not the latest. And also try another HDD or USB drive to see whether it will do the same.

The VR2800 cannot do what you want. As you can see, there is no place to block certain port on the VR2800. Also the time is set to be hourly and cannot be changed.

If your ISP is using PPPOE as WAN connection type, you can just reset the D7 to factory default/ delete the PPPOE connection on D7, then connect the router to any port, and do the PPPOE connection on...