I just got back from the Grand in NV. They have WIFI, but it is not free - it cost my son $60 for the week. He discovered it while we were all sitting around the pool waitng for our rooms on Saturday. We used his computer during the week.
The salesman that took us on a tour told me that they had computer access in the rooms at the Grand. I specifically asked him because the model had a computer that was plugged in on the sofa table against the wall. We took the tour the week before we stayed there. They did not have internet access in the unit(s) we had. We had taken a patch cable in case we needed to plug in rather than have WIFI.