We have a wAP60AP serving 3 LHG60s about 400M away. They have been working great for over 6 months. But, now we are seeing the links intermittently stop passing traffic. Typically happens to 1 client at a time, but has happened to all 3 clients at different times. The the wap AP still shows the link up with no change in RSSI or MCS, but the TX for that station goes to 0 bps. If I disable and quickly re-enable the station from the AP, the link will come right back up and start passing traffic again. We've tried 6.47.10, 6.48.6 and 6.49.2 releases. Also replacing the AP and 1 of the clients didn't make a difference. The issue can happen a few times per hour or not happen for 24 hours. Frequency of occurrence doesn't seem to coincide with traffic levels, weather, or temperature.