Apple TV 3 not seeing any computers on the homeshare but is connected to wifi and ethernet

I have two A1469 atvs both connected by ethernet to lan. Computer running iTunes is connected by ethernet to same lan. Both worked fine until first atv auto updated to 7.3 (8065) and computer would not show up. Tried all the suggested stuff and nothing worked. Checked second atv which had not updated yet and everything worked fine. Day later second atv auto updated and now nothing works. Apple you need to fix this!