Posted: Thu Dec 28, 2017 17:39 Post subject: Can't disable SFE (Linksys WRT160N v1, 12-14-2017-r34080)
Hey guys! Recently installed/upgraded a Linksys WRT160N v1 from stock to a mini build (dd-wrt.v24_mini_generic.bin) of r34080 (12-14-2017) using the wiki guide. Did some searching (forum, wiki, google), and I'm not sure why I'm unable to save/apply the option/radio button to disable/turn off SFE (Shortcut Forwarding Engine) on the Setup -> Basic Setup tab. Each time I try to save/apply the setting after switching from Enable to Disable, it switches back to Enable. I assume that a setting elsewhere in my setup is stopping me from being able to make this change, but I'm not sure which. I've rebooted a few times and even tried from factory defaults again, but the change won't stick.
Appreciate your help in trying to figure this out, please let me know if you need any further info about my setup, and I apologize if I've missed anything (re-read the peacock thread/announcements before posting)
Posted: Thu Dec 28, 2017 21:19 Post subject: Downgrade
This may be one of the few cases where I would suggest you to downgrade. See the link in my signature. I would suggest downgrading one build at a time. Make sure reset to defaults is checked each time. _________________ Before asking a question on the forums, update dd-wrt: Where do I download firmware? I suggest reading it all.
QCA Best WiFi Settings
Some dd-wrt wiki pages are up to date, others are not. PM me if you find an old one.
Atheros:
Netgear R7800 x3 - WDS AP / station, gateway, QoS
TP-Link Archer C7 v2 x2 - WDS Station
TP-Link TL-WDR3600 v1 - WDS Station
TP-Link 841nd v8 - NU
D-Link 615 C1/E3/I1 x 7 - 1 WDS station
D-Link 825 B1 - NU
D-Link 862L A1 x2 - WDS Station
Netgear WNDR3700v2 - NU
UBNT loco M2 x2 - airOS
Broadcom
Linksys EA6400 - Gateway, QoS
Asus N66U - AP
Netgear WNDR3700v3 - not used
MediaTek
UBNT EdgeRouter X - switch
I was afraid that that might be my only choice, but if that resolves the issue, I'm definitely willing to try. I'll post back after I get a chance to downgrade and, in the meantime, if anyone else has any suggestions, I'm all ears!
Posted: Thu Dec 28, 2017 21:55 Post subject: Disabled
I was able to disable SFE on all of my routers, but that was shortly after it was introduced earlier this year. I don't reset to defaults when I upgrade, so my settings carry over. _________________ Before asking a question on the forums, update dd-wrt: Where do I download firmware? I suggest reading it all.
QCA Best WiFi Settings
Some dd-wrt wiki pages are up to date, others are not. PM me if you find an old one.
Atheros:
Netgear R7800 x3 - WDS AP / station, gateway, QoS
TP-Link Archer C7 v2 x2 - WDS Station
TP-Link TL-WDR3600 v1 - WDS Station
TP-Link 841nd v8 - NU
D-Link 615 C1/E3/I1 x 7 - 1 WDS station
D-Link 825 B1 - NU
D-Link 862L A1 x2 - WDS Station
Netgear WNDR3700v2 - NU
UBNT loco M2 x2 - airOS
Broadcom
Linksys EA6400 - Gateway, QoS
Asus N66U - AP
Netgear WNDR3700v3 - not used
MediaTek
UBNT EdgeRouter X - switch
Update! So I was hoping that the Dec 29th release (r34311) would help resolve my issue, but it did not (reset to default, etc.).
I then decided to follow ian5142's advice and, one by one, downgraded (while always resetting) all the way to 10-17-2017-r33525 (post-krack fix), and none of those, including 10-17-2017-r33525, allowed me to turn off SFE on this router (and that was the only setting I changed after setting the router password post-downgrade).
I did manage to resolve one of my other issues when downgrading, so that's a plus (thank you ian5142), but just thought I'd post this hear to save anyone else in the same position some time
Posted: Thu Jan 04, 2018 20:56 Post subject: Re: Can't disable SFE (Linksys WRT160N v1, 12-14-2017-r34080
Farshid420 wrote:
Recently installed/upgraded a Linksys WRT160N v1 from stock to a mini build (dd-wrt.v24_mini_generic.bin) of r34080 (12-14-2017) using the wiki guide. Did some searching (forum, wiki, google), and I'm not sure why I'm unable to save/apply the option/radio button to disable/turn off SFE (Shortcut Forwarding Engine) on the Setup -> Basic Setup tab. Each time I try to save/apply the setting after switching from Enable to Disable, it switches back to Enable.
The answer is very simple; builds using kernels before 3.10 don't have SFE. Yours is kernel 2.4. Unfortunately, the button selection was still put in SFE-unsupported builds, and the way it was done makes it always show on, instead of off, as it should. The button really needs removed from pre-k3.10 builds.
What issue are you having with 34311 that made you want to try disabling SFE anyway? _________________ #NAT/SFE/CTF: limited speed w/ DD#Repeater issues#DD-WRT info: FAQ, Builds, Types, Modes, Changes, Demo#
OPNsense x64 5050e ITX|DD: DIR-810L, 2*EA6900@1GHz, R6300v1, RT-N66U@663, WNDR4000@533, E1500@353,
WRT54G{Lv1.1,Sv6}@250|FreshTomato: F7D8302@532|OpenWRT: F9K1119v1, RT-ACRH13, R6220, WNDR3700v4
Just so we're on the same page, does that mean that even though the option is there and set to enabled, it's really not having any effect because of the kernel version? If so, that would definitely rule it out as being the cause of any issues I may be having, which is great news
The issue I was having was getting a Linksys WES610N "wireless entertainment bridge" to get an IP (kept disconnecting after never successfully getting one, even after I set one statically for it on either side), and after unsuccessfully trying everything with the settings on the bridge and on the router (under r34080 and r34311), I took ian5142's advice about downgrading to address the SFE issue, and even though it didn't work on any of the previous releases I tried, I found that my bridge issue started with r34080, but wasn't present in r33986, so that's the one I stuck with
Thank you all for your help (and hopefully this helps someone else who stumbles on this thread)!
Just so we're on the same page, does that mean that even though the option is there and set to enabled, it's really not having any effect because of the kernel version? [...]
Yes, specifically, it's not having any effect because the code for it isn't present in that kernel version.
Farshid420 wrote:
The issue I was having was getting a Linksys WES610N "wireless entertainment bridge" to get an IP (kept disconnecting after never successfully getting one, even after I set one statically for it on either side) [...] I found that my bridge issue started with r34080, but wasn't present in r33986, so that's the one I stuck with
Aside from the above, SFE was added to 3.10+ kernels in 33006. There have been various reports of wireless issues since all the krack changes started rolling in, particularly with multicast stuff. _________________ #NAT/SFE/CTF: limited speed w/ DD#Repeater issues#DD-WRT info: FAQ, Builds, Types, Modes, Changes, Demo#
OPNsense x64 5050e ITX|DD: DIR-810L, 2*EA6900@1GHz, R6300v1, RT-N66U@663, WNDR4000@533, E1500@353,
WRT54G{Lv1.1,Sv6}@250|FreshTomato: F7D8302@532|OpenWRT: F9K1119v1, RT-ACRH13, R6220, WNDR3700v4