Nothing worked for me ... so i rang technical support and finally found my receipt .... TP Link authorized a return so now i have the D9 ... no more freezing..

just flashed it now and i will let you know ......

im also having the same issue ,.... freezing at least 3 to 4 times a day ... only started about a week ago , Archer d7 running the latest firmware . need some help or im going back to my billion