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FS#2039 - Sierra Wireless EM7565 not working with Linksys WRT3200ACM #8426

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openwrt-bot opened this issue Jan 1, 2019 · 2 comments
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@openwrt-bot
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tpahula:

I have problems with Sierra Wireless EM7565 wireless module and USB 3.0 M.2 adapter. Device is detected correctly and works with TP-Link Archer C7 v2 which have older kernel version. I am using 18.06-SNAPSHOT r7405 version and kernel 4.14.82. I am connecting with QMI mode. I have tested also MBIM mode without success.

I have verified connection using following command:

uqmi -d /dev/cdc-wdm0 --get-data-status --get-current-settings --get-capabilities --get-signal-info --get-serving-system "connected"

I have also tried changing RAW IP-mode. I have read following article:

https://techship.com/faq/how-to-step-by-step-set-up-a-data-connection-over-qmi-interface-using-qmicli-and-in-kernel-driver-qmi-wwan-in-linux/

@openwrt-bot
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tpahula:

I updated EM7565 firmware to release 12. Update solved my problem if I use USB 2.0 mode. USB 3.0 mode is not working. I have added following lines to my rc.local file:

//# Disable the network interfaces exposed by the cellular module:
ip link set dev wwan0 down

Trigger the Raw-IP support:

echo Y > /sys/class/net/wwan0/qmi/raw_ip

Enable the network interfaces again:

ip link set dev wwan0 up
//

@openwrt-bot
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xback:

Hi,

The explanation above is a bit unclear.
Could you please describe for both devices separately
what is actually working and what is not?
Also specify the kernel in use for each.

I have a lot of these modems in the office so maybe I can help here.

Thanks,

Koen

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