# Diagnostics We can use the pre-built tools and web terminal to test the internet connection. After login router admin panel, go to "Network > Diagnostics." ## Ping Tool Use the "Ping" tool to ping a public DNS server or website to test latency. If returning a "Bad address" error, the internet connection is not working. If ping results have high latency, such as more significant than 300ms, the Internet speed is not fast. ## System Log The router's system log includes the records of events and activities on the router, such as various system events, operations, errors, and warnings related to the router's firmware and software. We can go to "Status > System Log" and check the related error records when some connectivity error happens. ## Debugging If you need our help debugging the problems, please send the screenshot of the router's home page, paste the above-mentioned system log, and send them to us by email. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://ezr34t.router.works/manual/diagnostics.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.