# My browsersync is gonna give me a seizure

**URL:** https://discourse.roots.io/t/my-browsersync-is-gonna-give-me-a-seizure/12263
**Category:** sage
**Tags:** browsersync, webpack, sage9
**Created:** 2018-04-19T18:42:39Z
**Posts:** 9
**Showing post:** 9 of 9

## Post 9 by @ben — 2018-04-20T02:28:11Z

When you do `yarn start` and the BS session starts, is it actually running on `http://localhost:3000`, or do you have a port conflict and it’s running on some other port?

If it’s not running on port `3000`, [try killing whatever is on there](https://discourse.roots.io/t/xmlhttprequest-cannot-load-hot-update-json-due-to-access-control-checks/12145/5?u=benword) …or try updating the config with a different port

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