Issue：“camera_imu: Master Unreachable! ”

[luke-king]

I tried to follow the steps in author's blog, but I got the error response in app "camera_imu: Master Unreachable!" . To solve this problem, I have tried sudo service ssh start, but it didn't work.
Please anyone help me , thank you!

[qian2020]

I also meet this problem, how did you resolve it?

[SkyPoet]

I also meet this problem, how did you resolve it?

I also meet this problem, how did you resolve it?