ERR_CONNECTION_RESET is Chromium network error -101. The Chromium net error list defines it as “A connection was reset (corresponding to a TCP RST)”. The error also appears as net::ERR_CONNECTION_RESET. The fixes below come from Google’s Chrome Help page on connection and loading errors and run from quickest to most involved.
In the Chromium list, -101 sits in the 100 to 199 range of connection related errors, one place after -100, CONNECTION_CLOSED, which corresponds to a TCP FIN.
Chrome Help puts firewall or antivirus software, the modem or router, cookies, extensions, memory use and website downtime among the causes of connection errors.
Check the URL and reload the page
The first step on Chrome Help is to look for mistakes in the web address.
- Check the address in the address bar for mistakes.
- At the top left, select Reload this page.
- Open another website. Chrome Help says that if more than one site fails, the internet connection is the next thing to check.
Check the internet connection and restart the modem and router
Make sure the device is connected to the internet over Wi-Fi or ethernet. Chrome Help also says to check that the modem and router are working properly, and that you may need to reboot both or contact the internet service provider.
- Confirm the device is connected over Wi-Fi or ethernet.
- Reboot the modem and the router.
- Load the website again.
- If the error remains, contact the internet service provider.
On public Wi-Fi, such as in a cafe, Chrome Help says you might need to sign in through a portal page first.
Update and restart Chrome
Chrome Help says to make sure Chrome is on the latest version. If Chrome is already up to date and has no updates available, restart it by hand. The restart steps differ by platform.
On Windows:
- At the top right of the Chrome window, select Close, or select More, then Exit.
- Reopen Chrome from the Start menu or a desktop shortcut.
On Mac:
- In the menu bar, select Chrome, then Quit Google Chrome.
- Reopen Chrome from the Applications folder or the dock.
On Chromebook:
- At the top right of the Chrome window, select Close.
- Reopen Chrome from the Launcher or the dock.
Chrome Help also says a device without enough available memory can suffer page crashes and loading errors, and it suggests closing unused tabs and stopping unwanted tasks.
Try Incognito mode, then disable extensions
Open the same website in an Incognito window. Chrome Help says that if the page loads there, you should exit Incognito mode and move on to disabling extensions or deleting browsing data, since those are the steps that follow on its list.
- Open the website in Incognito mode.
- If it loads, exit Incognito mode and disable all extensions. Chrome Help recommends disabling every extension at this stage.
- Reload the website.
- If the site loads with extensions off, turn them back on one at a time until the error returns. Chrome Help says this identifies the extension causing the problem.
Delete browsing data
Chrome Help’s next step is to delete browsing data such as history, cookies and cache.
- In the address bar, type Delete browsing data.
- In the search results, select the action chip labelled Delete browsing data.
- Delete the data, then reload the website.
Check firewall or antivirus software
Chrome Help says to make sure that no firewall or antivirus software is blocking the connection. On Windows, that means the Firewall and Network Protection section of the Windows Security app. On Mac, it means the Mac’s Firewall settings.
- On Windows, open the Windows Security app and check Firewall and Network Protection.
- On Mac, check the Firewall settings.
- Make sure the software is not blocking Chrome or the website, then reload.
Chrome Help also suggests running a Safety Check to protect against malware and other risks.
Reset or reinstall Chrome
The last step on Chrome Help is to reset Chrome to its default settings. Chrome Help offers uninstalling and reinstalling as a way to fix most problems.
It also says that when you are signed into Chrome, your saved information is kept in your Google Account and is still there after you reinstall and sign in.
- Reset Chrome settings to default.
- Reload the website.
- If the error remains, uninstall Chrome and install it again.
Sources:
- Chromium net_error_list.h: https://chromium.googlesource.com/chromium/src/+/main/net/base/net_error_list.h
- Google Chrome Help, Fix connection and loading errors in Chrome: https://support.google.com/chrome/answer/6098869