Weird Connectivity Problem

Odd issue with Teacher laptop:

I have a Lenovo E570 laptop that will connect to our secure network but will not get an IP address (it gets an APIPA) in the teacher's classroom.  When you walk around the corner, it connects just fine.  The students can connect without issue while in the classroom but they are using Lenovo 11e Chromebooks.  Another teacher says she has trouble with internet on her device when she goes into that room also.  I reset the network adapter on her computer.  I deleted the driver and added it back.  I entered a static address and made a reservation for it.  She still can't connect when she connects the first time in the room.  However, if I take the device walk out of the room about ten feet it will connect and will stay connected (and she is connected to that WAP in her room where it works fine then).  If I disconnect and reconnect in the room though, it doesn't work.  I'm at a loss.  I've looked at the port for the AP and it has the appropriate VLANs.  The students connect to the same secure network anyway so I don't know why they would have no problem while she can't get an address.  Anyone seen a problem like this?