i think they are using the same Trendchip chipset. But tp-link won't let us know the chipset name. The difference between TD-W8961N and TD-W8961ND is the later one has detachable antenna.

i found that on the tp-link website , tl-wn722n v3 driver for Operating System: Linux Kernel 2.6.18~3.19.3 maybe this is the issue? sorry, i am not familiar with Linux but i think you can contact...

model of your router and who is the internet provider? maxwillor wrote i cannot troubleshoot the issue.. help me.. please give me some suggestions

this print server is using protocol LPR which smart phones don't support. but some companies work out a app to support it, like ePrint or PrintHand. they are charged app not free. i am not quite sure...

great. knew that kaspersky may block this log.

it is hard to tell. but you can refer to this FAQ and try the steps mentioned .. https://www.tp-link.com/uk/faq-409.html