[nkaufman]

Hello,

Having some issues with my R7800 router and wanted to reinstall dd-wrt and then the later firmware.

Read that it might be better to erase nvram before and after installing dd-wrt.

Am wondering if there are any precise instructions on how to do this.

Should I run commands from GUI or should I telnet and then run?

thanks,

[Alozaros]

press the reset button does well or reset via GUI, otherwise via telnet or ssh

nvram erase && reboot

important thing is, do not load save file from a different builds, redo settings manually
usually i use txt file copy/paste values

do not perform 30/30/30 on this router...this is only for an old WRT series routers from the past..

i never use command box...

[kernel-panic69]

Administration->Factory Defaults->Reset To Factory Defaults is the other option. You do not want to use the Commands tab.

[blkt]

A hardware reset for this router, from the R7800 user manual, while powered on hold the reset button for at least 7 seconds.

An nvram erase is definitely one of those things you should only do via Telnet and not the GUI (pictures are not necessary).
This is recommended after flashing from stock factory firmware to dd-wrt, a major upgrade (rare) or downgrade.
If you want to be safe before a flash, simply go to GUI Administration -> Factory Defaults tab to restore the default configuration.

I don’t understand this phrase "reinstall dd-wrt and then the later firmware" as you should be able flash directly.
Which build file do you plan on using and how do you plan to flash it: TFTP, Telnet or GUI?
If you do a GUI upgrade be sure to leave the dropdown alone (Don't reset).

Check out the wiki nvram erase && reboot and also the Netgear R7800 Install Guide by egc.

[nkaufman]

Thanks everyone for their comments.

So, no going to Administration -> Command and then running:
"nvram erase && reboot"


Preferred way is to connect to router via telnet and then running this command.


By re-install dd-wrt, I meant can one run factory-to-wrt again on a dd-wrt router or will that cause any problems?

[blkt]

If you are using CLI (Telnet/SSH) or GUI to upgrade from DD-WRT, use the webupgrade binary. It's a full install.

The factory-to-ddwrt image is only used if you are currently running on stock factory firmware and I believe also with TFTP.

Read egc's install guide.

[kernel-panic69]

https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614

[andreyua]

I set some data (tests with dual wan)… for example:

[egc]

It probably is recreated as those are default values.

[andreyua]

absoultely not

[egc]

Awfully sorry for bringing it up will not happen again.

[Ontarier]

Coincidentally, I ended up with the same vlan config as andreyua after adding a new vlan. When I entered nvram erase && reboot the newly configured vlan settings remained. So I wrote the original settings to nvram and these were saved, but after a subsequent nvram erase && reboot, so was the new vlan I had configured earlier. I haven't been able to find a way to delete vlan2ports=2 5 from nvram. Can you please advise how? Thanks!

[egc]

This thread started about a Netgear R7800 and then was hijacked by @andreyua, so to avoid confusion please start your own thread and mention router model and build number.