Hi,
I'm using Modbus Register 205 (Set Parameters) to switch between SIM Card 1 or 2.
Now I have the latest firmware RUT9XX_R_00.06.06.1 (old RUT9XX_R_00.06.05.1 had a bug in this function).
I can write the Modbus register correctly and the SIM card change seems to work. The SIM card changes and there are no errors in the logfile. But afterwards I have problems with the internet connection. It only works for approx 100 - 200MB or approx 1 - 2 minutes.
Then, The internet connection breaks and I have to restart the router. I have tested with different SIM cards and always get the same result. I also tested it with automatic switching from SIM 1 to SIM 2. With automatic switching there are no problems.
Can you confirm that?
regards