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While trying to connect Ganache-cli to remix, I get this error,

Not possible to connect to the Web3 provider. Make sure the provider is running and a connection is open (via IPC or RPC).

But remix IDE is able to connect to testRPC and not Ganache-cli, i have both on my system, I tried with both local copy of remix as well with online remix IDE.

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    Doesn't work on Brave browser. However it works with Crome browser for both http & https versions of remix.
    – Despotovic
    Commented May 13, 2021 at 14:15

2 Answers 2

Reset to default
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Run Remix from http://remix.ethereum.org, not https

Found the answer here: Testrpc running on 8545, yet Remix can't connect

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  • 's answer worked for me. If you are using brave browser then please disable the shield protection and change the https to http in the address bar
    – hariAnitha
    Commented Feb 13, 2022 at 19:07
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This is most likely due to an add blocker. I did not have to do any of the http changes described in the other answers. I was using Brave Browser and just had to disable the Brave Shields ("Shields Up") and was good to go.

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