RAX40 dropping signal

Been having the same problem since the router was installed on 5/27/20. I had the problem since day one with the initial firmware that was on the router, The latest firmware may have made it worse. I have had two open cases with netgrear about the problem. The first case they closed even after I ask them not to close it. Just yesterday, 8/5/20,  I was on the phone with a support tech for an hour and was directed me to make several changes in the settings. First I was told to change the channel of the 2.4 side to channel 9 and on the 5 Ghz side to 124. Then in WAN sections I was told to change the MTU section from 1500 to 1400. She told me to see if that fixed the problem and let them know in 24 hours.  If that did not work, they would replace the router. Well I just sent them a reply and told them that it DID NOT help and that I want the replacement router.  I read through all the forums on this problem and they mostly say that the only thing that fixes this problem is to get another brand of router. Put the nighthawn on eBay and kiss it good by.  As you mentioned, the router has to be rebooted daily and sometimes more than once in order to get an IPhone or iPad to connect. I'm not happy about it because it takes awhile for the router to reboot when your in a hurry to get on the network.

Good Luck. If you find a solution to this problem, let me know.