XDOT resetting RX2 freq on JOIN

[alejandro ballesta]

Hi all,

our device class C for EU band is resetting the RX2 frequency to 923300000 after a join command. Firstly we suppose it was a network server misconfiguration but the error persist even after a join error.
This does not happen if used in ABP. In OTAA the RX2 is overwritten with USA values.

AT+NJM?
1
OK
AT+TXCH?
Index	Frequency  DR Max Min  On
  0	868100000      5   0    1
  1	868300000      6   0    1
  2	868500000      5   0    1
  3	    0          0   0    0
  4	    0          0   0    0
  5	    0          0   0    0
  6	    0          0   0    0
  7	    0          0   0    0
  8	    0          0   0    0
  9	    0          0   0    0
  10	    0          0   0    0
  11	    0          0   0    0
  12	    0          0   0    0
  13	    0          0   0    0
  14	    0          0   0    0
  15	    0          0   0    0
  R2	869525000      0   0

AT+JOIN
Failed to join network
ERROR
AT+TXCH?
Index	Frequency  DR Max Min  On
  0	868100000      5   0    1
  1	868300000      6   0    1
  2	868500000      5   0    1
  3	    0          0   0    0
  4	    0          0   0    0
  5	    0          0   0    0
  6	    0          0   0    0
  7	    0          0   0    0
  8	    0          0   0    0
  9	    0          0   0    0
  10	    0          0   0    0
  11	    0          0   0    0
  12	    0          0   0    0
  13	    0          0   0    0
  14	    0          0   0    0
  15	    0          0   0    0
  R2	923300000      0   8
OK
ati
MultiTech xDot
Firmware : 3.0.0-mbed144
Library  : 3.0.0-mbed144
MTS-Lora : 3.0.0
OK

We can make it work if after the join we change use AT+RXF=869525000 but I believe this is not the right way to correct this.

Regards

• This topic was modified 5 years, 11 months ago by alejandro ballesta.

[alejandro ballesta]

Example of a successful join. Same result.

at+txch
Index	Frequency  DR Max Min  On
  0	868100000      5   0    1
  1	868300000      6   0    1
  2	868500000      5   0    1
  3	    0          0   0    0
  4	    0          0   0    0
  5	    0          0   0    0
  6	    0          0   0    0
  7	    0          0   0    0
  8	    0          0   0    0
  9	    0          0   0    0
  10	    0          0   0    0
  11	    0          0   0    0
  12	    0          0   0    0
  13	    0          0   0    0
  14	    0          0   0    0
  15	    0          0   0    0
  R2	869525000      0   0

OK
at+join
Successfully joined network
OK
at+txch
Index	Frequency  DR Max Min  On
  0	868100000      5   0    1
  1	868300000      6   0    1
  2	868500000      5   0    1
  3	868800000      5   0    1
  4	869000000      5   0    1
  5	869525000      5   0    1
  6	869800000      5   0    1
  7	868100000      5   0    1
  8	    0          0   0    0
  9	    0          0   0    0
  10	    0          0   0    0
  11	    0          0   0    0
  12	    0          0   0    0
  13	    0          0   0    0
  14	    0          0   0    0
  15	    0          0   0    0
  R2	923300000      0   0
OK

[Jason Reiss]

Do a factory reset and save.
Then reconfigure your network settings.

AT&F
AT&W

[Author]

Posts