# Troubleshooting Guide If you're experiencing unexpected behaviour or low success rates, try these initial steps. ### **Understand Our CAPTCHA Solving Process** Familiarize yourself with how we handle CAPTCHAs by reviewing our [Handling CAPTCHA Events](https://developers.oxylabs.io/scraping-solutions/headless-browser/features/handling-captcha-events) process. This can provide insight into whether CAPTCHA challenges are the source of the issue. ### **Try an Alternative Browser Endpoint** Some target websites perform better with a specific browser engine. If you're using the Chrome endpoint, consider switching to the Firefox endpoint, or vice-versa:\ Chrome Endpoint: `wss://ubc.oxylabs.io`\ Firefox Endpoint: `wss://ubs.oxylabs.io` ### **Use the Country Parameter** Specifying a country parameter in your requests can significantly increase success rates. This ensures your requests are routed through IPs from a specific geographic location, filtering out IPs from random or potentially less reliable locations. You can specify a country for your browser session by adding the `?p_cc` parameter to your connection URL. More information can be found in section [Geolocation targeting](https://developers.oxylabs.io/scraping-solutions/headless-browser/features/geolocation-targeting). ### **Use the Device Type Parameter** Experimenting with a device parameter can result in higher success rates. You can customize how the browser emulates different device types by using the `?p_device` parameter. More information can be found in [Device Type](https://developers.oxylabs.io/scraping-solutions/unblocking-browser/chrome#device-type) section. Please note this is supported only for Chrome version at the moment. {% hint style="info" %} If issues persist after trying these steps, please contact your Dedicated Account Manager with details of the problem and the steps you've already taken. {% endhint %} --- # 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://developers.oxylabs.io/scraping-solutions/headless-browser/troubleshooting-guide.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.