WG3526>EM20 loosing connection

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Didneywhorl
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Re: WG3526>EM20 loosing connection

Post by Didneywhorl » Sun Apr 11, 2021 11:25 am

RockyinNM wrote:
Wed Mar 31, 2021 2:21 pm
I DO NOT want to hijack this thread, but could you share why you like mbim--over QMI mode??
and what would be the AT command to return it back to QMI mode, if things did not work out.
Thanks
I prefer it as I find it's overall top speeds to be higher on average, and for some reason Verizon connections tend to work more often then not when in MBIM vs QMI. Visible included. IT shouldn't be that way, but it's what I find. I just have better overall luck connecting to different plans in MBIM vs QMI.


For all Quectel Modems:
MBIM:

Code: Select all

AT+QCFG="usbnet",2
then

Code: Select all

AT+CFUN=1,1
QMI:

Code: Select all

AT+QCFG="usbnet",0
then

Code: Select all

AT+CFUN=1,1

Tony2k
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Re: WG3526>EM20 loosing connection

Post by Tony2k » Mon Apr 12, 2021 2:32 pm

I have exactly the same problem with my ZBT-WE826 + Sierra EM7455, every 3-4 hours it looses internet connection and I have to restart wwan. I tried Rooter, OpenWRT, MBIM and QMI mode and also ModemManeger but the problem is always the same. I don't think that can be hardware related because Volts value and also lte signal are good.

Did you found anything good to solve?

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Re: WG3526>EM20 loosing connection

Post by Didneywhorl » Tue Apr 13, 2021 3:00 pm

Tony2k wrote:
Mon Apr 12, 2021 2:32 pm
I have exactly the same problem with my ZBT-WE826 + Sierra EM7455, every 3-4 hours it looses internet connection and I have to restart wwan. I tried Rooter, OpenWRT, MBIM and QMI mode and also ModemManeger but the problem is always the same. I don't think that can be hardware related because Volts value and also lte signal are good.

Did you found anything good to solve?

Have you tried checking the option to "Drop Invalid Packets" ?

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Re: WG3526>EM20 loosing connection

Post by Tony2k » Wed Apr 14, 2021 3:32 am

No but I'm trying now.

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