[SOLVED] R7000 CTF No longer available [Gremlins]

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lionblue
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PostPosted: Mon Nov 29, 2021 5:26    Post subject: [SOLVED] R7000 CTF No longer available [Gremlins] Reply with quote
I upgraded Netgear R7000 from factory to the latest 47692 (11/28/21) earlier today. I noticed that my speeds dropped from the factory firmware wired. With factory, my speed was yo-yoing a bit but it averaged out to around 700-800 down. With 47692, I was consistently pulling in the mid 450's. Per some previous threads, there were mentions of using SFE and CTF. I only had an option for SFE (Enable/Disable, not a drop down). When I checked the HTML, the options regarding CTF were commented out, for some reason. (I am set to WAN DHCP)

Looking at what was available, SFE was on my default already. When I attempted to turn it off, it did make things worse so I returned it to the enabled state.

After seeing some screenshots where CTF was supposed to be available, I did try and roll back releases by a bit to 47528 (10/10/21) and all of the sudden CTF is available there. I turned it on and my speeds shot through the roof again, sometimes pulling 1000+.

Just wondering why CTF was removed from recent releases and if so, is there a danger in continuing to use it in the 10/10 release?

I searched the forum but didn't see any recent mentions about CTF being removed. In fact, several folks that upgraded in the newer builds mentioned CTF being on(?), so I'm not sure if they were just retaining settings because they were using that setting on an older build, or what.
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the-joker
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PostPosted: Mon Nov 29, 2021 6:46    Post subject: Reply with quote
@lionblue

Welcome to the forums.

Did you reset the nvram before or after the upgrade from factory to DD-wrt?

I'm not personally familiar with your particular router, within our community many users have this router... I'm sure they will chime in. However Broadcom should have CTF and CTF & FA

So please ensure you have correctly upgraded from factory and that there are no nvram gremlins around. That said, when you have a cleared your nvram and rebooted/reconfigured, if you have no luck, enable syslog/klog and grab the output and attach to your reply.

Good luck and take care.



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lionblue
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PostPosted: Mon Nov 29, 2021 9:05    Post subject: Reply with quote
I had not done an NVRAM reset. I did one at your urging and the option disappeared again once I had setup the username and password for the new config.

Once I did a proper reboot of the router after that, the option finally came back (and looks similar to your screenshot). Interesting it required an extra reboot after setup before the option became available.

Edit:

Looks like somebody brought this issue up in an open bug report for port forwarding that two reboots are needed for it to show up

https://svn.dd-wrt.com/ticket/7472#comment:4
egc
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PostPosted: Mon Nov 29, 2021 11:59    Post subject: Reply with quote
It is not a bug, if you are coming from a build with no CTF, you need a second reboot.

The first boot will detect CTF possibility which is then activated on the second boot.

Once activated there is an nvram variable to indicate CTF and you do not need a second reboot (probably until you reset to defaults then you need that second reboot again, I think)

If you are coming from stock (or from a really old build) you always have to do a reset to defaults after you have upgraded to DDWRT Smile

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kernel-panic69
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PostPosted: Mon Nov 29, 2021 16:38    Post subject: Reply with quote
This information needs to welcome new users to the forum. We continually shoot ourselves in the foot by not having proper information curation and expecting folks to "just know". It's not a matter of intelligence; it's a matter of delivery.
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egc
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PostPosted: Mon Nov 29, 2021 16:50    Post subject: Reply with quote
It is in the wiki Smile
https://wiki.dd-wrt.com/wiki/index.php/Hardware

Quote:
Note that for Flow Acceleration to be visible and selectable, the WAN interface of the router MUST be configured EITHER with DHCP or with a Static IP address, it must also have QoS disabled, and AFTER the configuration is saved and applied, the router MUST be rebooted for the option to appear. CTF Level 1 does not require QoS to be disabled, however, so if you need QoS you can still use it however packets going through the CTF bypass may ignore QoS settings.

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Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
the-joker
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PostPosted: Mon Nov 29, 2021 17:09    Post subject: Reply with quote
Glad its all sorted and solved, will mark as such.

Generally speaking and I mean generally, from a point of factory to dd-wrt its never a great idea to leave nvram with whatever possible stale values hanging around in any case.
Clearing nvram usually implies reboot, like flashing FW should reboot.

Most significant changes never take hold until reboot and full hardware initialization happens, no matter OS.

Take care. Wink Razz

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