maintain bandwidth for specific devices

hello

I have sky broadband with SR102 device by sky

several devices get connected and the bandwidth becomes less available, so what I want to do is to maintain at least let's say 80% of the available bandwidth for two specific devices, or limit the bandwidth of all the other devices apart from those two devices, or something similar, I think you understand what I mean

I am not sure how to do that, I was told I need a device with QoS, but then again not all QoS devices can do what I want, and maybe devices or software that support guest network could offer me a solution, but I am not sure which device would do

I also need it to work and be compatible with sky broadband

I will never connect any device to the router/modem/or-whatever-you-want-it-to-call and I will never use a landline phone service

I need the cheapest device to connect to internet and that my two devices will not get clogged when many devices connect to the network

any suggestions please?

thanks!

By insisting on a single box solution you are slightly limited

The Asus DSL-N66U should allow you to do QoS and run as a single box no matter whether its ADSL2+ or VDSL2 that you are using. As for cheapest at £105 it may not be, but QoS tends to mean higher end devices rather than the bargain basement £39.99 devices.

In reply to a post by MrSaffron:

As for cheapest at £105 it may not be, but QoS tends to mean higher end devices rather than the bargain basement £39.99 devices.

I was quite surprised to see full QoS facilities in my TalkTalk Huawei HG533 which could probably be had fairly cheaply on Ebay. It would not be suitable for fibre though, if that what the OP has, due to Sky's custom auth mechanism.

In reply to a post by MrSaffron:

By insisting on a single box solution you are slightly limited

The Asus DSL-N66U should allow you to do QoS and run as a single box no matter whether its ADSL2+ or VDSL2

The DSL N66U doesn't appear to support G.INP so would not be a good idea for VDSL2

It does with a a firmware update