Hello @mario

the pinger error 8 you are seeing means no DNS server have been set.

Looking at the at commands for the SARA-R5 module and the response you posted for the at+cgcontrdp=1 command it looks like ip addresses for primary and secondary DNS are missing.

+CGCONTRDP: 1,5,“iot.telekom.net.MNC040.MCC901.GPRS”,“10.213.137.2.255.0.0.0”,“10.0.0.1”,“”,“”,“”,“”,0,0,1500,0,0

The three IP addresses which are returned are IP, mask and gateway. However the next two entries (primary and secondary DNS) are empty strings.

The only command I’ve seen in the at command list to set DNS ip adress is AT+UPSD. If that is the correct command and how to use it I cannot say as I don’t have that particular modem to test myself.

Hopefully somebody more knowledgeable can help you with that.

Thanks
Felix

@herr-bruns , we can’t provide you with a concrete activation timeline yet unfortunately, but we will inform you as soon as possible, tentatively in the coming month.

@Hans-Liefting: Can you please send me the IMEI of your device to support@iotcreators.com? I will check the logs to understand when uplink and downlink messages are received and when downlink messages are sent by the udp server.

Regards, Roland

Happy to read that it works! 🙂

Dear all,

Thanks to hints from @Kolja-Vornholt , I found a link that with forking works great for me: Sending the input to my parser with socat. All request will now be handled by their own fork.

Example for Linux:

socat -u TCP4-LISTEN:4445,keepalive,reuseaddr,fork STDOUT | php -f /bin/parseTCPdata4445.php

Thanks to this post:
https://stackoverflow.com/questions/44886399/output-a-linux-command-to-a-url-port-or-scocket-instead-of-writing-it-to-a-file/68299500#68299500

Thanks again, @Kolja-Vornholt

@Adriaan This post continues here: click link

(Why can we not edit posts?)

@Kolja-Vornholt The problem was as summarized:

I’ve set our modem to band 20-only. I want to use auto-attach (at+cops=0) but it did not find a network However, manual attach (with selecting Vodafone’s network) did work

Doing something else for about 30 minutes around the time @Kolja-Vornholt left the reply about searching the network.
Trying the search only gave me seemingly non-related info (“90104”),
But trying the auto-COPS suddenly did the trick and attached in no time.

So, it doesn’t really seem like a solution yet…

@Adriaan

Well, at least I can reproduce the issue. On the sending side on Linux, the -N flag does the thing.

echo "Hello there" | nc machine.domain <port> -N -v 2>&1

When connecting to a remote host, and using strace -r -f netcat -k -l <port> , setting the -N flag results in

0.000596 read(4, "", 16308) = 0 0.000354 shutdown(4, SHUT_RD) = 0

Without the -N flag, listener remains listening, and hence not closing the connection. This is the last line then:

0.000404 poll([{fd=0, events=POLLIN}, {fd=4, events=0}, {fd=4, events=POLLIN}, {fd=1, events=0}], 4, -1

Next step is that I am going to look if I can change something on the listener side as well.

Greetz,

Adriaan

I try to connect with LTE-M to T-Mobile with a MKR NB 1500 Arduino module. But when I ask for current time from the cellurar module I get the EPoch time that is 4 hours earlier than my local time. Has anyone solver this problem.

#MKRNB1500

As roaming is more or less transparent for the device as well as backend-end server, this recommendation formulated here https://forum.iotcreators.com/topic/594/data-packet-size still applies.

Hi,

Is there a problem with the T-Mobile NBIoT network. Quite some devices having a connection with T-Mobile went offline at night between 26 and 27 April

Thanks,
Thanas

Hi @MeneerJacco
please send me your ICCID or IMSI in a private message via the forum chat tool and I’m going to look at your tariff.
Thanks,
Uta

Hi Artur,

one of our customers have been using https://opencellid.org/ in the past for cell-id localization. Telekom is also working together with Polte which offer an IoT localization API. You can learn more here: https://iotcreators.com/en/iot-location-api/ and sign up if you want to try it.

Florian

Hi @Claude-RICHARD

Welcome, happy to have you here :-).

Unfortunately you can only use our UDP server with simcards from Deutsche Telekom.

We can send you one, but there is another problem: we do not have NB-IoT roaming in France (yet)… 😞

@Uta - Hello! Yes, the activity is expected as a field is test is ongoing (yesterday and today). Additional logs from the 2 SIMs at of the day today via email would be again appreciated.

Hi Peter,

I just contacted you via our support channel so I can do some additional tests to your connection.

Can you please send my your IMEIs as a response to the email which you just got.

Many thanks!

Regards, Roland

We can find this out by looking up the connection info in our network.
Can you please send me the ICCID (number on the sim-card) or IMSI via DM or support@iotcreators.com?

Thanks!

I see successful connections in our backend and will send you details by email.