I recently tried setting up a Chromecast only to discover that something wasn't allowing my phone to connect to the Chromecast. Both devices were connected to the wireless. After some research I found that the 'ap isolation' setting on some routers needs changing. Again after much research to find the login details for my router I then discovered that there wasn't even an option on my router for 'ap isolation'!
We have the same router that we had when we first signed up to Plusnet in 2011, it is a Thomson TG585 v8.
Is it possible to have a newer router, or one that at least will allow the Chromecast to work!