Solved the relatively minor issue - it was a 'sign-in' problem with the local network provider.

However another problem . I could not download more iTunes rentals/movies onto my 16 gb ipod touch directly from the store due to lack of 'space' . i deleted  unused apps and a HD movie that took up 5 GB , yet the amount of 'used' space still shows as 9 GB , and every-time I try and down load an itunes movie/rental directly to Ipod , it says ' not enough space' for the download. I then have to download the movie onto my desktop itunes account and transfer to ipod - no problem there.

But why isnt there enough space for a direct wi- fi download when clearly i have deleted most unused apps and other heavy files ? In fact this ipod is only used for itunes movies I want to see on my big screen TV which i connect through a Apple lightning connector MDZ86ZM/A. A detailed reply with associated solutions for watching big screen movies through the ipod  would be appreciated.

Thankyou.