iTach Wifi unit and the Netgear Orbi When attempting to connect an iTach WiFi unit (WF2IR, WF2SL, and WF2CC) to a Netgear Orbi router, you may need to disable the 20/40 MHz coexistence on the Orbi. Have more questions? Submit a request 3 Comments Date Votes 0 Iker Pryszo December 28, 2017 17:52 With newest firmware (tested on 220.127.116.11) you ALSO need to disable "Enable WMM (Wi-Fi multimedia) settings" for the 2.4GHz b/g/n settings (you can leave it enable on 5GHz 802.11a/n/ac). 0 Sai September 07, 2018 19:19 Network is ok but suddenly device is not locking 0 Iker Pryszo September 08, 2018 16:58 Still no issue on my side with Firmware 18.104.22.168. Make sure to disable the 20/40 MHz coexistence and WMM (Wi-Fi multimedia) settings Please sign in to leave a comment.