Closed laptop lid and wifi

Hi hoping someone can help.

I want to be able to access my new dell13xps via teamviewer or similar and I want to do this with the lid shut.

This works fine (when lid closed do nothing etc) and I can log on from another PC.

Obviously if i lose the wifi signal i have lost the connection; however if the signal then comes back it does not auto connect to it, which it does with the lid open and i can no longer remotely access it.

Have noticed that although i have specified do nothing when closing the lid, it does actually seem to switch off the monitor when it gets to say within 2 inches of closing.

I need true do nothing when closing the lid as it would then pick up the wifi once available

If anyone can help would appreciate it