Ask the provider about this issue machan. But first connect to your router via LAN cable and shut off all other devices which uses your router.
Check your speed test several times. See if you(laptop/desktop) or the router has any DNS settings configured. (Ex: Google DNS)
Try to stick to basic/default settings your router provider has given. If there is no change then you can esquire from the ISP and i'm sure they will tweak some settings for you.
PS: Speeds and QoS is directly affected by network cable length, version of network cable (like Cat6, Cat5e) and most of all any electrical wires that near by to your cable.
This is so important machan. Thank you so much for the info. I think this LAN cable means the Ethernet cable right? Ill try to do something













