AT+USOCL gives error

Official Hardware MKR Family MKR NB 1500
1

After a lot of head scratching, I think I figured out why client.stop (or any other function that sends AT+USOCL to the modem) fails with "Error". In the NBClient.cpp Library @ around line #433:

MODEM.waitForResponse(10000)

This means the library only waits 10 sec for a response. This is not enough time. The uBlox AT commant reference states that it can take up to 120 sec for a response. I changed it to: MODEM.waitForResponse(120000) and things seem to be working...

Mkr485 shield power supply issue
2

Hello Zbelding,

Thank you so much for sharing your findings with Arduino community.

Your post is much appreciated and useful. Thank you so much!

Kind Regards