Arduino 101 and CAN Bus Shield SeeedStudio

Hardware Arduino 101
1

Hy there,

I'm currently working on a project where I want to send the data from the imu on the Arduino 101 over CAN Bus to a Master. The CAN Bus Shield that I'm using is the following: https://www.seeedstudio.com/CANBUS-Shield-p-2256.html?gclid=CMXHs9T6tNMCFUWfGwod22sBXQ

Now the issues:

  1. It works in generally, but (and now the weird thing) just when I am using the USB port as supply voltage and NOT when I am using the power jack as a power source.

  2. I figured out that the voltage regulator on the 101 outputs 5.3V when using the power jack source. I looked up the specs from the CAN Chips (MCP2515 and MCP2551) and saw that their working for 4.5<VDD<5.5V so shouldn't be a problem et all.
    But when I am powering the board with 5V directly(so by applying 5V to the 5V pin of the 101) it works.

Did somebody have a similar problem? (Maybe also in combination with a different Shield)

Does somebody have a clue?

Thanks in advance!