An hour earlier, I had flashed the firmware, named openwrt-ramips-mt7621-netgear_r6800-squashfs-factory to my Netgear R6800.After finishing the process, the power light of the router is always on while others off. After trying to restore to factory default mode, it still did not work. Finally, I use nmrpflash back to the factory firmware and then it was the thing before I did the flash firmware. I downloaded the firmware from openwrt.org and had checked the sha256 sum. It seems some problems remain. Any ideas ?
I have solved this issue by degrading the firmware version to 1.0.42, DO NOT upgrade to the newest version,1.0.62, which would make the openwrt installation failed.Notably, After installing the snapshot of netgear R6800, you can not login via web ui, even after flashing the upgrade version.However, you can install the luci via ssh.
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Please, where did you find that version ? You are talking about the openwrt firmware, not the negear one ? (versions numbers are vert similar) Thanks in advance !
For anyone passing here no issues here in latest snapshot, lastedt *.62 firmware.
I downloaded the firmware via https://openwrt.org/toh/hwdata/netgear/netgear_r6800_1.0. I flashed the INSTALL URL and then UPGRADE URL. It works if the original firmware of the router is 1.0.42, but would fail if you upgrade to the latest 1.0.62. That's my experience. Anything unclear ?Happy sharing with you.
I don't see this issue. Today I flashed the latest Netgear OEM firmware (1.0.62) and then immediately overwrote this with the latest r6800-squashfs-factory.img (http://downloads.openwrt.org/snapshots/targets/ramips/mt7621/openwrt-ramips-mt7621-netgear_r6800-squashfs-factory.img). I was then able to ssh and install luci and then restore my backed up settings. Everything worked as expected. These latest builds appear to be a bit more stable with better 5G WIFI performance. Using speedtest from my mobile phone connected to wifi I was able to achieve 182Mbps down 39Mbps up on 5G. However, 2.4G WIFI was not so good with only 4.22Mbps down 33Mbps up, very odd.
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Hi guys, how are your speeds with SQM properly set ? How is the performance vs stock ? I just got back to stock because i had a lot of packet loss, over ethernet on my ShadowPC..
It's been 9 months since this device has been added in a snapshot, any idea when it would be integrated in a stable build? I'm a little bit afraid of bricking my device by installing a snapshot manually.
The plan is to ultimately install domoticz on my router.
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No real risk of bricking, and recovering is very easy (Netgear settings are preserved in my experience, that's amazing)
I installed openwrt but my phone wasn't auto reconnecting to wifi anymore and my chromecast was invisible on the network after a few hours until a reboot.
I tried nmrpflash to put back the stock firmware but it kept complaining about bad memory blocks. In the end I was able to recover the router by resetting it via the physical reset button.
So far, the LED is not working properly, the wireless network will go wrong for up to 24 hours, and no device can find the signal.
I'm seeing the power LED on here, glowing orange; that looks fine. LAN1 shows a steady white, no difference whether there's traffic or not.
In the LED section, I see WAN + all four LAN LEDs defined, but when I hook up another device to e.g. LAN2 or LAN3, the related LEDs don't light up, despite the port becoming active (logread says so). Is this what you're seeing?
Edit: I noticed that, when a LAN port is active at boot, the LED will turn on; but if the client shuts down e.g. the LED will just stay on. Same if you unplug the cable. The LED state only gets refreshed at the next boot.
Yes, the led is a minor problem, now it disappears after a period of wifi, and it cannot be searched.
I flash the last version. I think the most important issue is the 5Ghz wifi, it's very weak.
LED is not very important. I hope to release a next version as soon as possible to solve the problem of weak 5GHz wifi signal. Thank you!
Could someone please share firmware which has upgrade to openwrt possible?
i tried 4 times upgrading via gui (fr 1.2.0.36; 1.2.0.72) - it bricks.
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@yukunyi See here for an update on the LEDs:
@xkuza I recently flashed a recent master build without issues from stock, so you might want to try your hand at an early 21.02 image. You might need to rename it so it looks like a Netgear image filename (e.g. netgear-v2.0.1.img or something like that).
Hello
Is there any VLAN support on R6800?
I don't see the "Switch" menu entry under "Network"
I'm using openwrt 21.02.0-rc1
Thanks
Just a basic success report for the R7450 (Walmart?) variant.
From a factory stock firmware (R7450_V1.2.0.88_1.0.1.img), I was able to install the openwrt-21.02.0-ramips-mt7621-netgear_r6800-squashfs-factory.img via the stock firmware's upgrade menu. I did have to rename the image file (to R7450_V1.img). Trying to use the OpenWrt factory image under the original name failed. For the renamed file, the stock firmware warned that it was a version downgrade; but it went ahead and let me install OpenWrt anyway.
I should also mention that I tested using the debrick tool (nmrpflash) before installing OpenWrt. It worked, but I did have to use the reset button rather then power cycling the router to get the timing right. This was using an Ubuntu 20.04 system as the host, so maybe power cycling the router would have worked with Windows.
As for functionality, I've only tested basic routing (lan to wan) as well as 5G WiFi to wan which all seems to work okay.
I have two of the R7450s and hope to use one as my primary wan to lan/wifi home router and the other one as a lan to wifi access point. Eventually using them as file servers for backup is another goal.
This topic was intended for adding support for this specific device.
Since official 21.02.0 images are available now, I will set a timer for this topic to close.
Why?
Because specific problems for this device with official releases are better handled in separate topics, in order to make finding relevant information easier.
Therefore: Please open new topics for any open issues with this device.
Thanks! 
This topic was automatically closed 3 days after the last reply. New replies are no longer allowed.