[OpenWrt-Devel] [OpenWrt-Tickets] [OpenWrt] #20685: Weak Wi-Fi signal E1700 (MT7620A)

Sam Charania scharania11 at gmail.com
Tue Feb 7 07:37:56 EST 2017


E1700 using
https://downloads.lede-project.org/releases/17.01.0-rc1/targets/ramips/mt7620/lede-17.01.0-rc1-r3042-ec095b5-ramips-mt7620-e1700-squashfs-factory.bin

root at lede:~# cat /proc/cpuinfo
system type : MediaTek MT7620A ver:2 eco:6
machine : Linksys E1700
processor : 0
cpu model : MIPS 24KEc V5.0
BogoMIPS : 385.84
wait instruction : yes
microsecond timers : yes
tlb_entries : 32
extra interrupt vector : yes
hardware watchpoint : yes, count: 4, address/irw mask: [0x0ffc, 0x0ffc,
0x0ffb, 0x0ffb]
isa : mips1 mips2 mips32r1 mips32r2
ASEs implemented : mips16 dsp
shadow register sets : 1
kscratch registers : 0
package : 0
core : 0
VCED exceptions : not available
VCEI exceptions : not available




root at lede:~# cat /proc/mtd
dev:    size   erasesize  name
mtd0: 00030000 00001000 "u-boot"
mtd1: 00010000 00001000 "config"
mtd2: 00010000 00001000 "factory"
mtd3: 007b0000 00001000 "firmware"
mtd4: 001281bd 00001000 "kernel"
mtd5: 00687e43 00001000 "rootfs"
mtd6: 00451000 00001000 "rootfs_data"

root at lede:~# free -m
             total       used       free     shared    buffers     cached
Mem:         61112      21536      39576        712       2200       7616
-/+ buffers/cache:      11720      49392
Swap:            0          0          0
root at lede:~#

Also note:

[image: Inline image 1]


On Tue, Feb 7, 2017 at 11:23 AM, Daniel Golle <daniel at makrotopia.org> wrote:

> Hi Toan,
>
> I received some more funding on the kickstarter campaign which will
> allow me to add support for the external PA and external LNA stuff
> which will bring our GPL'ed driver to the same level of hardware
> support of the vendor's driver.
> In order to do that it'd be great if you can provide some help:
> Please flash your router to OpenWrt or LEDE and enter a console via
> SSH. Then see which flash partition holds the wifi eeprom:
> cat /proc/mtd
> There is supposed to be a 'factory' partition, e.g. /dev/mtd2 or
> something like that. Dump that partition to /tmp
> dd if=/dev/mtd2 of=/tmp/factory.bin
> Then logout and copy that file to your workstation:
> scp root at 192.168.1.1:/tmp/factory.bin .
> (assuming the router has the IP 192.168.1.1)
> Then send that file (factory.bin) to me via email, so I can analyze
> it and see how we can auto-detect those features present on your
> device.
>
> I know this is some effort (flashing OpenWrt/LEDE and then reverting
> to the factory firmware, loosing your configuration on the way and all
> that) but I would be a great help and most likely improve the bad wifi
> signal situation on OpenWrt/LEDE within the next days.
>
>
> Cheers
>
>
> Daniel
>
>
> On Sun, Feb 05, 2017 at 02:19:10PM -0500, Toan Pham wrote:
> > Hi,
> >
> > I tested OpenWrt trunk version on the E1700 five months ago.  At that
> time,
> > openwrt (or the vendor) claimed that all of all ethernet ports are
> gibabit
> > ports (ref.  https://wiki.openwrt.org/toh/hwdata/linksys/linksys_e1700)
> > However, All four ports showed up as 100Mb, not Gbps ports, on Chaos
> Calmer
> > build.  Please let me know if you're experiencing the same thing, if so,
> > should we update Openwrt product spec webpage to reflect the actual link
> > speed?
> >
> > I also found wifi on the e1700 hardware unbearable.  That's why I had to
> > revert back to OEM firmware.
> >
> >
> >
> > TP
> >
> > On Sun, Feb 5, 2017 at 10:24 AM, Daniel Golle <daniel at makrotopia.org>
> wrote:
> >
> > > Hi Sam,
> > >
> > > If this didn't get any better with on recent LEDE builds after commit
> > > https://git.lede-project.org/?p=source.git;a=commit;h=
> > > b367eef21dccbc5115778001955847ac3af47db8
> > > it's most likely the issue is due to missing external PA init in the
> > > rt2x00 driver. I'm currently fixing the most of the obvious problems
> > > with rt2x00 on MT7620, but there are too many to get this done within
> > > a weekend and a kickstarter bounty of EUR 200. External PA currently
> > > isn't on the list of things I give priority to because none of the
> > > boards I've seen are using this feature. Please retry with the current
> > > LEDE build, if that doesn't fix the issue, let me know.
> > >
> > > I'll fix external PA if you are willing to help testing on the device
> > > you own and obviously I'd appreciate if you throw something into my
> > > hat for that tedious work on a not-very-well designed wifi chip and
> > > a driver which has grown beyond reasonable size...
> > >
> > > https://www.kickstarter.com/projects/1327597961/better-
> > > support-for-mt7620a-n-in-openwrt-lede/
> > >
> > >
> > > Cheers
> > >
> > >
> > > Daniel
> > >
> > > On Sun, Feb 05, 2017 at 03:07:02PM +0000, Sam Charania wrote:
> > > > Hi,
> > > >
> > > > Did this ever get resolved?
> > > >
> > > > I would like to help resolve it so please advise ASAP.
> > > >
> > > > Thanks,
> > > > Sam
> > >
> > > > _______________________________________________
> > > > openwrt-devel mailing list
> > > > openwrt-devel at lists.openwrt.org
> > > > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
> > > _______________________________________________
> > > openwrt-devel mailing list
> > > openwrt-devel at lists.openwrt.org
> > > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
> > >
>
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