Proxy server refuses to connect how to do?5 common causes and solutions

Proxy server can not connect? See if you've stepped on these 5 pitfalls first!

Encountered the agent can not be connected to the situation, do not rush to smash the keyboard! I've helped people deal with hundreds of proxy failures in the past few years, summarized these most common problems, guaranteed that you encountered eight or nine not very much.

1. IP blocked into a sieve

This is the most common situation, just like using the same key to open the door of the whole neighborhood, the property does not catch you catch who? Especially for those who do data collection, the public proxy pool is easy to be blacked out by the target website. At this timeRotation IP frequencyrespond in singingIP purityIt would be especially important.

Last week a customer doing e-commerce price comparison was planted in this, they used a free proxy to grab the data, as a result, Amazon directly blocked the entire IP segment. Later, they switched to ipipgo's dynamic residential proxy, which has 90 million+ IP pools to use in turn, together with thesession.rotate_interval = 30This parameter is set to change IPs once every half hour and no more problems.

2. Port protocol mismatch

I have seen the most outrageous case is the socks5 proxy to fill in the http protocol, the result of tossing two hours froze can not connect. Different business scenarios need to use the corresponding protocol type:

All of ipipgo's proxies support dual protocols, but pay attention to the client configuration. For example, the Python requests library has to be written this way:

proxies = {
  'http': 'http://user:pass@gateway.ipipgo:port',
  'https': 'http://user:pass@gateway.ipipgo:port'
}

3. Authentication information fill-in splits

It's embarrassing to say that you've made a mistake with your account password, but there are a lot of people out there who have been caught in the act. Especially for enterprise level agents, there are oftenMulti-level certificationIn this case, ipipgo's enterprise package supports IP whitelist + account dual authentication. It is recommended to generate a fixed whitelist in the console first to avoid frequent password loss.

Tip for testing connectivity: measure basic connectivity first with the curl command
curl -x http://user:pass@ip:port http://httpbin.org/ip
If you can return the proxy IP, it means that the authentication is OK, otherwise you have to check the account status or contact customer service.

4. Local network tripping

Don't just suspect the proxy, your own network may also be the culprit. I've encountered the odd case of a corporate firewall blocking a proxy port, so I'd recommend checking them out in that order:

1. Ping the gateway to see if the intranet is working
2. Telnet to see if the proxy port is open
3. Change 4G hotspot test to rule out network problems

If you are sure it is a local issue, ipipgo's static residential proxy supports fixed IP bindings for easy configuration of firewall whitelisting.

5. Agent package is not selected correctly

Choosing a proxy is like buying shoes, you have to try it to know if it fits or not. There is a TikTok live customers, the beginning of the dynamic agent always lagging, changed to ipipgo TikTok line, latency directly from 200ms down to 50ms.

Package Selection Guide:

• Dynamic residential (standard): suitable for general crawlers, data collection
• Dynamic Residential (Enterprise): Preferred for high concurrency business with dedicated channel
• Static Residential: Businesses that require a fixed IP, such as account management

QA time

Q: How can a proxy IP I just bought be blocked immediately?
A: may be IP blacklist pollution, it is recommended to contact ipipgo customer service to change the pure IP segment, their static residential agent are unused clean IP.

Q: What if I need both HTTP and SOCKS5?
A: Directly find customer service to open dual-protocol support, no additional fees, but pay attention to the client configuration to distinguish the use of the scene.

Q: What's the difference between a corporate package and a personal package?
A: The main difference is in the number of concurrency and exclusive channel, enterprise package with independent API gateway and priority scheduling, suitable for production environments that require stability.

Don't panic when you encounter proxy problems, first go through this process, if you really can't get it, ipipgo's technical support response is quite fast, the last time I raised a work order at 2:00 a.m., and I received the solution in ten minutes. Remember, choose the right proxy service provider can save at least half of the tossing time.