Hotspot file length issue?

I am getting a file not found error msg when creating a hotspot. The file is definitely there but the pathname is 121 characters (this is an example, there are a number that don’t work) and contains \ and . It also spills onto a second line.

I have tried searching for a limit for hotspot lengths but have had no joy, does anyone know if there is a limit and if so, what it is?

Thanks in advance

Lynn Wood