For those users still having problems with connection
and you think, your hardware is good
SPAM their facebook messages and website , include customer ID and telephone number
have them to call you
have them to monitor your internet connection, they can remote access(u need to install a program and let them gain access)
I let them did it, and finally they did something at their backend... and FINALLY fix after 4 months of wait
and to those who given me all assistant in this thread... is all useless... is their problem.... but thanks again to those very informative guys
experience differs so solution differs too