Xbox 100% packet loss and other wifi issues

[cgx]

Hi, so, live small 3 bed terrace by myself, internet comes into the house upstairs more or less at the top of the landing - wifi access upstairs good but downstairs has been poor - sky box would often not connect and occasional issues with wifi on the phone. Changed provider to utility warehouse amongst other things hoping a new router would help - it didn't. Changed to a TP link router hoping that would solve the issues - nope, added a tp lnk access point downstairs in the living room but still no further forward - sky box often fails to download anything, trying to play online (Xbox downstairs in living room) is hit and miss but mostly miss, and numerous issues trying to connect my Kef wireless speakers.

There is no-one else in the house using the wifi, devices connected are the ipad/iphone, Kef, Tv Sky and xbox but not all on at the same time.
Dug a little deeper into the xbox setting and my network was showing 53% wireless strength and 100% packet loss. Tried following some tips for reducing packet loss, cleared Mac address, changed dns, reset all devices numerous times etc and ended up with 100% wireless strength but still 100% packet loss, making multiplayer unplayable. Gave up and put an episode of Kin on that I had recorded - that stopped after 6 minutes as sky couldnt connect to the internet and the download failed which was just the last straw and hence this post as I am so frustrated with it.

Having already spent £150 on the router and booster/access point I'm reluctant to spend anymore if its not going to fix the issue, but happy to pay for something that will defo work - reading on here about MESH systems but have to admit I'm an IT novice and dont really understand how they work, how you make them an access point or a hub or whatever - can some one let me know how best to proceed - anything else to try with the router I have first, or the best (and easiest) MESH system to buy/set up)? Did start reading the MESH and best wifi threads but got a little lost on them!

Please explain as if you are talking to a 5 year old :-)

Much appreciate any help

Thanks

[xeny]

Very left field but easy suggestion - have you tried turning the router upside down, and presumably it's not sat on a metal shelf or anything sill like that?

[cgx]

Xeny, you are a star! About 6 months ago after having some problems with the speed I moved the router out of the corner of the room (where the line comes in) and rested the router on top of a metal speaker stand I had lying around. It never occurred to me that my serious issues have come since then - had no idea a metal stand would make any difference - have just put the router back where it was and has reduced packet loss form 100% to 1% - thank you so much :-)