My broadband was strong all over house but when I renewed it only works where hub is

[MM58]

I have Sky Broadband for about 15 years The first 10 years it worked well all over the house Now it only works where hub is 

[peter-marlow+1966]

You may need a new  hub ?  Or a booster  from sky, i would give the sky broadband  team a call and talk to them about  the  issues you are having , have you  tried  restarting  the  hub itself  to ?