Error Caused by Incomplete Monitoring Address

Problem description

Customer configured ran the page task and found that Availability was very low. The error reported was concentrated on Chrome 79, and the error reported was "Unable to establish connection with the server (page)"

Problem analysis

Check the error data and check the packet capture. It is found that there is no HTTP packet in the error report, which means that the client is transmitted using the https protocol. Check the normal data. There is an HTTP packet in the captured packet, indicating that the normal data is transmitted using the HTTP protocol.
(1) HTTP protocol access

(2) https protocol access

(3) Check the task settings and find that the monitoring address is not fully written, only the address is written, and the protocol is not added.

Cause of the problem

When task settings, the address is not fully written in the protocol. If the protocol is not filled in, the client will give priority to access using the https protocol by default. If the monitoring address is not supported, an error will be reported.

Solution

In task settings, write the entire address starting from the protocol.

Error Caused by Incomplete Monitoring Address

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Problem description

Problem analysis

Cause of the problem

Solution