Slow broadband - mini boxes not connecting

[Leydo2000]

Hi, I've got upload speeds of 3.4 mbps and download 139 mbps, jitter 3ms.

The sky multirooms are constantly disconnecting.  I work on the second floor and in the past 6 months, the WiFi signal is terrible. I would upgrade but concerned Sky is not set up correctly.  
 
would appreciate advice 

[Addie15]

Hi there, I’ve escalated your post to our Community Messaging team who will invite you to a private chat shortly and help you with this. 

Just look out for the colourful bubble to start the conversation. Please be aware conversations automatically close if there is no response within 48 hours.

Here's more information on how Community Messaging works - https://helpforum.sky.com/t5/Did-you-know/Escalating-a-post-to-a-Sky-expert/ba-p/3711147