i have a stc 4g router ,which has 14months 1400 sr.befroe i have got it more than 1.5mb downloading speed.
also during the last 6month i has been downloaded more than 1000gb
now i facing ,daily i have getting only 500mb per day /speed 1.5mb
when i download more than 500mb ,then speed it will be reduced 25kb-70kb like that
why its happening like that ,
i heard all isp limited whole unlimited pack speed limited
how much gigabite allowed full speed daly or monthly or yearly
kindly advise me