Posted: Thu Sep 12, 2019 14:38 Post subject: R7800 and build 40559
Hi
I flashed the latest BS DD-WRT v3.0-r40559 (08/06/19) on the R7800, had Kong previously, and now the CPU only shows 800 Megahertz. I also did a factory reset but still the same.
Any way to fix or do I need a different firmware revision?
Joined: 21 Jan 2017 Posts: 1782 Location: Illinois Moderator
Posted: Thu Sep 12, 2019 14:43 Post subject: Re: Netgear R7800 Only 800 Megahertz
quackmaster wrote:
Hi
I flashed the latest BS DD-WRT v3.0-r40559 (08/06/19) on the R7800, had Kong previously, and now the CPU only shows 800 Megahertz. I also did a factory reset but still the same.
Any way to fix or do I need a different firmware revision?
Posted: Tue Oct 22, 2019 6:40 Post subject: TFTP Transfer assistance
I started by doing a 30/30/30 reset and attempted to do a GUI upload of build 40559 to my Netgear r7800. It appears that the upload failed as the router now does a 15 sec reboot time and the power button is solid red.
I have been able to ping it and get an intermittent TTL=128 reply, and the port LED that I am plugged into does blink at the same time, for about 3-5 seconds, then restarts again. I have tried pushing both DD-WRT build 40559, as well as factory firmware v1.0.2.63beta to no avail. I haven't been able to find any firmware for this machine that isn't 20+ MB in size, and a tftp recommends a 2- MB to get it functional and then do GUI for the full version.
Does anyone have any ideas, as I am currently stuck.
Joined: 16 Nov 2015 Posts: 6411 Location: UK, London, just across the river..
Posted: Tue Oct 22, 2019 7:19 Post subject:
well...if you did 30/30/30 on this router it will get to recovery mode and than you did a bad flash i guess...
As 30/30/30 is very very bad idea on this router as on many others too...its bricked now i guess or stuck in
recovery mode...
look here https://kb.netgear.com/000059633/How-to-upload-firmware-to-a-NETGEAR-router-using-TFTP-client _________________ Atheros
TP-Link WR740Nv1 ---DD-WRT 55179 WAP
TP-Link WR1043NDv2 -DD-WRT 55303 Gateway/DoT,Forced DNS,Ad-Block,Firewall,x4VLAN,VPN
TP-Link WR1043NDv2 -Gargoyle OS 1.15.x AP,DNS,QoS,Quotas
Qualcomm-Atheros
Netgear XR500 --DD-WRT 55460 Gateway/DoH,Forced DNS,AP Isolation,4VLAN,Ad-Block,Firewall,Vanilla
Netgear R7800 --DD-WRT 55460 Gateway/DoT,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla
Netgear R9000 --DD-WRT 55363 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Broadcom
Netgear R7000 --DD-WRT 55460 Gateway/SmartDNS/DoH,AD-Block,Firewall,Forced DNS,x3VLAN,VPN
NOT USING 5Ghz ANYWHERE
------------------------------------------------------
Stubby DNS over TLS I DNSCrypt v2 by mac913
Unplug it. Hold the reset button in and plug it back in. When the power led starts flashing use tftpd32 to upload the firmware. _________________ I am far from a guru, I'm barely a novice.
Joined: 15 May 2013 Posts: 243 Location: The Nederlands
Posted: Tue Oct 22, 2019 10:03 Post subject:
if you disable the dd-wrt nvram reset thingie you will have to flash the default firmware or openwrt to reset it. These don't have nvram and thus will erase it.
tftp -i 192.168.1.1 PUT file
This is the command to run if you use the reset button until the unit starts having the white flashing light. The TFTP will only accept the builds which are designed to mimic the original firmware. AKA factory to X.
It seems to be extremely hard to brick these routers so just flash back the original firmware then upgrade back to dd-wrt. _________________ Hi
2x Netgear R7800
Joined: 18 Mar 2014 Posts: 12839 Location: Netherlands
Posted: Tue Oct 22, 2019 10:16 Post subject: Re: TFTP Transfer assistance
dnulho1 wrote:
I started by doing a 30/30/30 reset and attempted to do a GUI upload of build 40559 to my Netgear r7800. It appears that the upload failed as the router now does a 15 sec reboot time and the power button is solid red.
I have been able to ping it and get an intermittent TTL=128 reply, and the port LED that I am plugged into does blink at the same time, for about 3-5 seconds, then restarts again. I have tried pushing both DD-WRT build 40559, as well as factory firmware v1.0.2.63beta to no avail. I haven't been able to find any firmware for this machine that isn't 20+ MB in size, and a tftp recommends a 2- MB to get it functional and then do GUI for the full version.
Does anyone have any ideas, as I am currently stuck.
In the sticky threads there are some rules explained but the 4 most important are (in random order):
1. When posting always state router model, build number and when applicable Linux Kernel used.
2. NEVER use the router database
3. Supported devices (and most of the time an install guide) can be found at the supported devices wiki: https://wiki.dd-wrt.com/wiki/index.php/Supported_Devices
4. All builds are beta see the build threads on the forums for problems and be prepared to do serial recovery, builds can be found at: ftp://ftp.dd-wrt.com/betas/2019/ ( I have tested a lot of builds on a lot of routers and never had to do serial recovery, sometimes TFTP recovery, but maybe I am just lucky)
Unplug it. Hold the reset button in and plug it back in. When the power led starts flashing use tftpd32 to upload the firmware.
This is the method that I used to replace the stock firmware with the latest Brainslayer build (.img file). It worked perfectly. msoengineer documented it just 2 pages ago in this very thread and it definitely works great. Here is a copy/paste of his post.
msoengineer wrote:
For the future, you need to get the R7800 in TFTP mode first...this is not like the old broadcom days and peacock thread....
To get the router in TFTP mode:
Start with the router off.
1-plug the Ethernet code between laptop/desktop and Wan. If you don't plug it into the wan port and try using a lan port I found that the router doesn't want to enter into tftp mode.I believe you have about 5 minutes before this mode times out and then boots the router back to normal operation.
2-find something that can push in the reset button and hold down the reset button and power on the router. Keep holding down the reset button as the router boots up.
3-watch the power LED, it will flash orange six times, or so, and then it should start to flash White. Once it starts flashing white you can release the reset button and then you can push the IMG file via TFTP.
Hey everyone who commented,
Thanks for the assistance. I was able to reflash the OEM firmware back onto it, and I am going to do a more in-depth dive into the firmware versions before I just grab the router database recommended version and push... Late night "I'm tired of the issues with the current firmware" jump is not the right frame of mind to reflash router firmware... >.<
If anyone has a personally recommended version for the Netgear R7800, and why that version is the best; I'm all ears.
I am going to just list out the features I want in no particular order. Below is as much my brainstorming/feature desire as anything:
* 802.11ac
* MU-MIMO
* Beamforming
* Definable QOS
* VPN integratability
* DDNS capabality
* VLAN segregation capability
* DHCP with IP reservation capability
* Manual Port forwarding capability
* SSH remote interaction
* More as I think up things I want to be able to do.
Last edited by dnulho1 on Wed Oct 23, 2019 19:35; edited 1 time in total
Joined: 16 Nov 2015 Posts: 6411 Location: UK, London, just across the river..
Posted: Wed Oct 23, 2019 19:13 Post subject:
dnulho1 wrote:
Hey everyone who commented,
Thanks for the assistance. I was able to reflash the OEM firmware back onto it, and I am going to do a more in-depth dive into the firmware versions before I just grab the router database recommended version and push... Late night "I'm tired of the issues with the current firmware" jump is not the right frame of mind to reflash router firmware... >.<
If anyone has a personally recommended version for the Netgear R7800, and why that version is the best; I'm all ears.
I am going to just list out the features I want in no particular order. Below is as much my brainstorming/feature desire as anything:
* 802.11ac
* MU-MIMO
* Beamforming
* Dynamic QOS
* VPN integratability
* DDNS capabality
* VLAN segregation capability
* DHCP with IP reservation capability
* Manual Port forwarding capability
* SSH remote interaction
* More as I think up things I want to be able to do.
the last Kong build is still running well, sadly you can find it only on demand....
all those features are very questionable how you gonna use them, as some of them are
settings dependant, some of them are client dependant...MU-MIMO works only on Stock firmware
and only with a specific clients in specific scenarios, that can take benefit of it, same is with Beamforming ....
Dynamic QOS ??? I haven't seen such a Dodo...on DDWRT is QoS with various prioritisations...
VPN works very good on R7800 but it depends what settings and encryption you want to use...
All the rest are working and R7800 is one of the best units around...
otherwise R7800 on stock Netgear firmware sucks badly... _________________ Atheros
TP-Link WR740Nv1 ---DD-WRT 55179 WAP
TP-Link WR1043NDv2 -DD-WRT 55303 Gateway/DoT,Forced DNS,Ad-Block,Firewall,x4VLAN,VPN
TP-Link WR1043NDv2 -Gargoyle OS 1.15.x AP,DNS,QoS,Quotas
Qualcomm-Atheros
Netgear XR500 --DD-WRT 55460 Gateway/DoH,Forced DNS,AP Isolation,4VLAN,Ad-Block,Firewall,Vanilla
Netgear R7800 --DD-WRT 55460 Gateway/DoT,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla
Netgear R9000 --DD-WRT 55363 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Broadcom
Netgear R7000 --DD-WRT 55460 Gateway/SmartDNS/DoH,AD-Block,Firewall,Forced DNS,x3VLAN,VPN
NOT USING 5Ghz ANYWHERE
------------------------------------------------------
Stubby DNS over TLS I DNSCrypt v2 by mac913