If you encounter a proxy failure, don't worry, you can use the curl command for preliminary troubleshooting.
Run following command in you CMD:
curl -x username:password@server:port http://api.ip.cc -i -v
If you use API,use this:
curl -x server:port http://api.ip.cc -i -v
You will receive an HTTP status code, which is the basis for determining your proxy failure.
You can find the problem and solution corresponding to your status code in the following table
HTTP status code
problem
Solution
403
Domain name ban
Try using another domain name
407
No username and password entered
Check if the account password was not entered when using the account password proxy
490
There are no available IPs in the current region
Choose another region to try
509
Port expiration(API)
Extract new IP and port again
512
White list authentication error(API)
Check if the IP has been added to the whitelist (if the current machine has multiple IPs, it is recommended to add them all), and if the IP has changed after being added
513
The requested region does not exist (API)
Choose another region to try
610
IP is Chinese Mainland IP
Use a IP that is not from Chinese Mainland
612
Account password error, sub account traffic limit
Check if the sub account has reached the set limit of used data, if there is any remaining available data in the account, and if the account password used is correct
613
The concurrent number exceeds the limit
Reduce concurrency or contact our sales team to increase concurrency limits
614
Port ban
Try accessing other ports again
622
There are no IPs in the current region
Choose another region to try