@
Monday40 Theres nothing a coffee mug can do to interfere unless you dip your iPad into the coffee mug.
If you're in a "building" as in a business, or you live in a multi-dwelling apartment building, and everyone is sharing the same internet connection, then you may be having a problem getting a connection, because some of the routers have a maximum of number of simultaneous connections.
I'm guessing because I don't what specifically the problem is.