Mudi GL-E750 doesn't work with Providers with IPv6

tschaefer · May 9, 2020, 8:23pm

Hi,

I have got the mudi portable 4G LTE Router GL-E750.

I am very disappointed. I tried three different SIMs.

SIM from Deutsche Telekom: autosetup - did not work at all
SIM from Vodafone - only IPv4 did work (I expected dualstack)
SIM from Telefonica - IPv4 did work (Telefonica only provides CGN IPv4)
I expected a little bit more from a device with the only purpose of routing. A lot of cheaper smartphones provide problemfree hotspots under the same conditions - with IPv6, with dual stack with IPv6-only.

I tried also the latest prerelease /testing version. But it did not change. Where should I start to get it running?

Regards,
Thomas Schäfer

alzhao · May 12, 2020, 3:39am

IPv6 is disable by default to prevent leak when using vpn.

To enable it, ssh to the router and do:

Modify this file and change all “1” to “0”
/etc/sysctl.d/99-disable-ipv6.conf

and execute

/etc/init.d/sysctl restart

tschaefer · May 13, 2020, 9:42am

It doesn’t help much.
The (Deutsche)Telekom-SIM still doesn’t work at all. The GUI says it is connected, but it doesn’t work.
With Vodafone (Germany) I still get only a IPv4-connection.
So I can’t reach my home computers.

Should I provide some log files? If yes, how should I do that?

alzhao · May 13, 2020, 10:39am

Do you use teamviewer? We can do a remote assistant. So it will be easier than you provide log.

tschaefer · May 13, 2020, 12:16pm

I installed teamviewer. I am ready now - for the next three hours. If this is bad for you, please make a proposal for a later date.
How I have to tell you the Teamviewer session ID?

alzhao · May 13, 2020, 12:21pm

Pls pm me. Can we connect your tomorrow morning? It will be my afternoon.

tschaefer · May 13, 2020, 12:24pm

Tomorrow morning in CEST is Ok for me, but I haven’t found the PM-function in this forum. I see my inbox, but I don’t see a button “create message” or something similar.

Johnex · May 13, 2020, 12:49pm

Click on @alzhao name above his posts, and it’s the blue “Message” button for private message.

tschaefer · May 13, 2020, 1:19pm

??

Johnex · May 13, 2020, 1:40pm

Oh interesting, you don’t have that button hmmm. Might be cos you are a new user?

@alzhao Can you start a PM to him?

alzhao · May 13, 2020, 2:58pm

Just did.
Just sent a message

tschaefer · May 14, 2020, 7:30am

I replied with the teamviewer ID/pw

tschaefer · May 14, 2020, 9:58am

It works now. Unfortunately I was on lunch. What should I do, if it happens again?
When is IPv6-access possible?

alzhao · May 14, 2020, 10:16am

When changing from QMI to ttyUSB Internet works. I will check IPV6.

tschaefer · May 14, 2020, 10:31am

Which USB-port/device should be used?

alzhao · May 14, 2020, 10:56am

ttyUSB3 is for data and ttyUSB2 is for command

Schlueter · February 22, 2021, 10:57am

Hello,

I do have exact the same issue here. Could you please provide solution in this thread?

Best regards,

alzhao · February 22, 2021, 2:05pm

Better describe more details. Thread is old. Firmware version also changed.

tschaefer · February 22, 2021, 5:52pm

Despite the latest release 3.105 from 2020-12-07 15:29:22 the problem still persists.
Also with beta 3.201 no success.

Schlueter · February 23, 2021, 9:45am

Hi there,

in my case the following did help, but I’m noiw facing permanent reconnects (1 Minute-interval):

uci set glipv6.globals.enabled=1
uci commit glipv6.globals.enabled

uci set network.3g.ipv6=1 #enter correct interface-name instead of 3g
uci commit network.3g

edit file /etc/chatscripts/3g.chat:
OK ‘AT+CGDCONT=1,“IPV6”,“$USE_APN”’

Maybe these hints do help you out.

Best regards,