Hi 

Installed 3 Deco P9s around a month ago, all working great really fast wifi and really pleased. Then all of a sudden wifi drops to snails pace, I have just plugged my laptop directly into my virgin v3 hub (ethanet cable) and according to the speed test I have 108mbps (happy with that) plugged my main Deco P9 into the same v3 hub port and then plugged my laptop into the Deco P9 pass through port, ran speed test and I have 0.5mbps! What could be going off? I can't find an answer online.... Thank you