R7000 2.4ghz not working but 5ghz is fine

All my devices on 2.4ghz do not work, hope there will be a solution quick

I am having the same issue. 5G is okay but 2.4G will not connect. Tried to change the wireless channel to EU, but the North America option is grayed out and will not allow me to make a different selection. Problem started today, immediately after upgrading firmware to V1.0.6.28_1.1.83. Tried reverting to the previous version, but have the same problem. Need to wait for Netgear to fix the bug?

A factory reset and manual settings re-entry does work.  Mine's been running smooth since I did it over a week ago.  Had the same initial symptoms, primary 2.4 wouldn't allow devices to connect, 2.4 guest and 5 both worked fine.

It's a real PITA, but I screen shot every page in "Advanced" settings (or you could take pics with your phone).  Then reloaded defaults and manually re-entered all settings.  For some, this might be an easy fix.  For me, I have about 20 DHCP Reservations, 7 Port Forwards, and some security settings for my cameras that I had to re-enter.  Took me about 25 minutes to reconfigure.  Couldn't afford to wait, some of those devices are WiFi thermostats.

After daily failures, it's now been working for a couple days and the only change I made was to uncheck (disable) "Enable 20/40 MHz Coexistence".  Let's see how long it lasts...

Has there been a solution? all of my ported devices are not working and do not have the capability to use 5G

Well, add me to the list. I did factory reset and rebuilt my router from scratch. I have simple setup too but have a nest thermostat and a wink home Automation hub that can only connect at 2.4ghz. Before the factory reset, my issue was exactly as described throughout this thread: perfectly reliable 5ghz and direct wire but 2.4 would just drop and devices could not connect. The devices still see the 2.4 and seem to pass it an acceptable password but keep waiting for ip to be issued. Also, I have tried turning on and off wifi switch  - no change in reliability. Rebooting router or toggling the wifi on/off hard switch on the router restores 2.4 functionality but only for a while. Issue occurs again usually within 24 hours. Fails for all devices. Also fails when 5ghz is disabled. Fails with and without password protection. Fails with one device connected, 7 devices connected, or no devices connected. Watching the netgear genie app after it fails, the 2.4ghz network disappears and reappears randomly and rapidly then suddenly settles down and is visible (but not usable) for several minutes then, bam, starts hopping in and out of existence again. I have witnessed this sane behaviour when scanning for wifi using two different smart phones. After rebooting router, 2.4ghz is always visible and connectable. And, when it works, it works great. Very good signal strength and very good distance. I have moved this router to a different floor of my house - exact same issue. When I drop the router and turn on my old trendnet I have no problems at all. I need 2.4ghz to run home Automation including my thermostat! For $200, this thing is useless to me, and I have spent almost 8 days and about 40 hours wasted testing it. Worse still, I was on with tech support and they told me I had a bed radio and needed to return it to Amazon. Uhhhh, sounds like everyone is having this issue so replacing it is not going to help. NETGEAR YOU ARE KILLING ME. please help

So, after I made the changes to the router settings described in my previous post, the the 2.4Ghz remained perfectly reliable and ran without incident for 30 hours. However, shortly after I made the changes, I noticed that the my netflix was buffering a lot more than usual. I have a 50 megabit ISP that can peak at 70 megabits so I knew something was up. I used speedtest - ran it about 30 times from two different PCs on my network (using Ethernet connection) and on several wifi devices connected via 2.4 and 5Ghz. If you can believe, the wireless results were between 45 and 50Mbts on 5Ghz and about 20Mbts on 2.4, which is expected. However, my ethernet connections all tested at 0.2 to 1.4Mbts - WAYYYYY slower than it should be. I bypassed the router and went direct into modem - got to 48Mbits minimum speed and bursted well of 50. Ran about 20 tests over an hour and tried hitting different servers: exerienced some variability but very little and all within expectation. I connected router (without rebooting) and went back down to about .02Megabits. OUCH. Rebooted router and modem. Ran tests again. Exact same. I undid the settings I changed (described in last post), rebooted router and modem. I recovered my performance in LAN but the 2.4Ghz modem fell off again. I called support, we spent 2 hours running every conceivable test and, in the end, they decided that there was a problem with the router. Durring this period, my first teir tech was talking with his backup support (teir 2) and he told me that this router might suffer from being made with parts that did not meet design specifications. He offered RMA. I went to Best Buy and bought another identical router (original was purchased from Amazon). Plugged it in yesterday, configured it exactly as I had originally with the first router (nothing fancy), ran two hours of tests. It was perfectly stable and FAST and has been running without issue for about 40 hours now. The model numbersare identical on the two routers but one I had all the trouble with has a serial number starting 44475B and the new one from Best buy (and that works perfectly) is 44475C, suggesting that it was made at a later date and therefore might benefit from containing different components or at least same components from a different batch. Therefore, I conclude that what the support rep told me is likely true: some of these models include parts that function but which do not meet design specs and, the result of this is that the router manifests easily producable and unexpected issues not usually identifiable until the modem is deployed and the issues cause noticible trouble. Lots of people might not have even bothered to test the speed of their modem and, if they had, they might have assumed it was the ISP. Now that I have a fully functional version of this router I am both happy and impressed. Too bad I had to outlay so much more money for the replacement and also had to spend about 40 hours over 9 days and talk to four different support reps to learn the truth of the matter. On the plus side, I found netgear support easy to access and seemed committed to heping me resolve the issue.