@scorpabhi In case you have left the "Channel Width" setting for the 5 GHz radio on "Auto", then you could try to set it manually to "80MHz", save it, and check if that makes any difference.

@Spell123 If you go to the settings page for the 5GHz wireless and click the drop-down menu for the "Channel" selection, which channel numbers are you able you choose from? Do you currently have the...

@Dolf_Dutch The TL-WA801ND only supports 2.4 GHz wireless. https://static.tp-link.com/2018/201810/20181022/TL-WA801ND%205.0%20Datasheet.pdf You will need another router / access point that supports 5...

@Johnny443 According to the Emulator on TP-Link's website in your router's web GUI you click the "Advanced" tab, then on the left scroll down to "System Tools", select "Firmware Upgrade" and then...

@Johnny443 In another thread one user confirmed he has this router working with Sky VDSL. https://community.tp-link.com/en/home/forum/topic/107460 Do you have the latest firmware on your VR2800?

@CraftyClown In answer to your question number 2: Check out the product page for the VR2800. There it says it achieves that speed by combining "NitroQAM™ and 4-Stream technology" (incl. picture for...