Reset port and Sync speed?

Oct 19, 2017
Hi all, this may well have been discussed before, but what does sync speed and reset port actually do for an adsl line?

It does not increase any speed according to speed test. And if if am having trouble downloading or streaming something, it helps nothing too. (For that i need to reset router and all the harrowing rigmarole that accompanies that...)

Please let me know why i have those controls on my adsl provider's app?