Opened 2 years ago

Last modified 18 months ago

#20644 new defect

Trendnet TEW-692GR

Reported by: stefan@… Owned by: developers
Priority: highest Milestone:
Component: base system Version: Chaos Calmer 15.05
Keywords: Cc:


After flashing the factory image openwrt-15.05-ramips-rt3883-tew-692gr-squashfs-factory.bin

on the original firmware the device is no more reachable. It is booting, also failsafe mode is ok but all tries to reach the Router via LAN are failing.

So I think the internal connection Switch - CPU is not configured correctly. There are more people with the same problem!

Attachments (0)

Change History (11)

comment:1 Changed 2 years ago by stefan@…

I found something in dmesg:

[ 2.360000] switch0: Atheros AR8327 rev. 2 switch registered on mdio-bus
[ 2.370000] Atheros AR8216/AR8236/AR8316: probe of mdio-bus:00 failed with error -22
[ 2.390000] ralink_soc_eth 10100000.ethernet: incorrect phy-mode -22
[ 2.400000] ralink_soc_eth 10100000.ethernet eth0: ralink at 0xb0100000, irq 5

Maybe there is the solution?

comment:2 Changed 2 years ago by michael@…

Same problem for me! Can't reach the Device.

Can someone build a Firmware with enabled WLAN? I have a second device to flash and get more informations.

comment:3 Changed 18 months ago by mkresin

I might have found the issue for the failing switch initialisation.

Since the TEW-692GR support is broken for a long time, there might be more issues. If possible attach a full bootlog.

Last edited 18 months ago by mkresin (previous) (diff)

comment:4 Changed 18 months ago by mnaegler

Is WLAN enabled by default? I won't lose another device.

comment:5 Changed 18 months ago by mkresin

What do you mean with lose? According to stefan networking is working in failsafe mode. And in failsafe you can flash an image using the sysupgrade command.

I've uploaded a fresh set of images which should have wireless enabled by default. As written, I'm not sure what else is broken. Could be possible that wifi doesn't work at all.

Anyway, someone need to be so brave to test the images. Otherwise the bug will never be fixed. Having a serial console attached to the device might be helpful.

comment:6 Changed 18 months ago by mnaegler

Not successful!

Same issue. I can't reach the device. WLAN is also not working. The failsafe-mode seems to be working (very fast blinking light), but without LAN or WLAN, I am not able to access the device. Install a new image is not possible.

One device is left to be brave. Send a new Image and I will test it.

comment:7 Changed 18 months ago by stefan@…

I´ll test it if I´m coming back home. We are on holidays...

Best regards

PS: I sure have a serial console attached and have everytime access on it.

comment:8 Changed 18 months ago by mkresin

Okay, I was able to fix the remaining issue and have uploaded a fresh set of images.

A forum user confirmed that the switch is working with the latest version of the images. Wifi doesn't not work yet.

I'll take care of sending the patches upstream.

@mnaegler Solder a serial console to the devices to revive them! Something like pogopins mighty work as well.

comment:9 Changed 18 months ago by mnaegler

Soldering solve my problem. I have access to the device. Thank you!

comment:10 Changed 18 months ago by dbobadilla001@…

Successful!! Test images available at:

Works perfectly on my TEW-692GR!!internal switch ok and also WiFi 2,4Ghz&5Ghz. Thanks to mkresin

comment:11 Changed 18 months ago by stefan@…

@mkresin can you explain me detailed, what you have changed? I also searched a long time solving the problem but my Linux skills are not as good as yours as it seems :D


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