你好，为啥我一直连不上火币矿池呢？一直提示地址不对~

[2021-02-17 16:21:26] Started cgminer 3.7.2
[2021-02-17 16:21:26] Loaded configuration file cgminer.conf
[2021-02-17 16:21:26] Probing for an alive pool
[2021-02-17 16:22:26] No servers were found that could be used to get work from.
[2021-02-17 16:25:01] Please check the details from the list below of the servers you have input
[2021-02-17 16:25:01] Most likely you have input the wrong URL, forgotten to add a port, or have not set up workers
[2021-02-17 16:25:01] Pool: 0 URL: stratum+tcp://ln.huobipool.com:1800 User: XXXX Password: XXXX
[2021-02-17 16:25:01] No servers could be used! Exiting.
您好，这是咋回事儿捏。用的3.7.2，谢谢！

[2021-02-17 09:55:11] Started cgminer 4.9.2
[2021-02-17 09:55:13] No devices detected!
[2021-02-17 09:55:13] Waiting for USB hotplug devices or press q to quit
您好，麻烦问下，这是啥情况？

stratum+tcp://ln.huobipool.com:1800 failed alive testing, reinput details，大佬，这是为啥捏？

stratum+tcp://ln.huobipool.com:1800 failed alive testing, reinput details
您好，这是啥原因呢？

No devices detected!
[2021-02-17 09:18:53] Waiting for USB hotplug devices or press q to quit
[2021-02-17 09:18:53] Need to specify at least one pool server. Input server details.
stratum+tcp://ln.huobipool.com:1800 failed alive testing, reinput details
麻烦问下，这是为啥呀