MIC mismatch with ttgo lora about lmic-node HOT 4 CLOSED

@Bighoneypot
Please respond.
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Hi,

I just see your question (missed the notification).

Your MIC mismatch may be related to incorrect Network Layer settings.
For LMIC-node / MCCI LMIC I suggest to use the following Network Layer settings for a device:

• LoRaWAN version: MAC V1.0.3
• Regional parameters version: PHY V1.0.3 REV A

If the parameters for your device are currently different from above you may try to set them to above values.

There are several options to do this:

1. In the console, change the exisiting device settings to the ones above.
   While this should work, in practice it may very well not (changed in console but not effective).

2. Change the parameters via the commandline tool (see TTS docs and TTN forum for more information).
   This should work (but I have not verified it).

3. In the console, delete the current device (this will render the device-id useless for later use), then in the same application create a new device for your node using above Network Layer settings (need to specify a new device-id).

4. Same as 3. but create the device in a new application.
   Use only if 3 does not solve the issue.

A user with similar MIC mismatch issue (and same board) reported that option 4 fixed it and option 3 apparently did not but lacked further details. Maybe that was you? If the issue is Network Layer settings related then option 3 should work just as well (and is preferred over 4).

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@lnlp
Gday,
yes I solve my issue with remove entire application and after I create new application the device work fine.

from lmic-node.

Thanks. Good to hear your issue has been solved.

from lmic-node.