Clear DNS Cache
If the site is open to everyone but not you, the likely cause of the ERR_CONNECTION_REFUSED error is an outdated DNS (Domain Name System) cache. Removing it should force your computer to update the IP address (Internet Protocol) of the website, which may have changed since you last accessed it.
DNS cache issues can also lead to DNS_PROBE_FINISHED_BAD_CONFIG and ERR_CACHE_MISS errors in Chrome.
Clear Windows DNS Cache
1. Press Windows + X to open the Power User Menu. Then select Windows PowerShell (Admin).
2. Enter the following in an elevated Windows PowerShell console:
Clear-DnsClientCache More read And Download
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