Problem Description: check the consle and find that postman has been crazy to link to the local port 7890, but I didn’t use the port at all. Could not send request has been reported wrong.

Solution: 1. I install postman on one computer, and then link to the same service port. Check the consle and find that the local port 7890 is not connected. Compare the two settings and find that they are the same.

2. But I always think it’s a setting problem. Later, I kept trying to find that I could just remove the check of setting proxy use the system proxy

I guess the local proxy settings of the pot.