getting curl: (35) error:1400410B:SSL routines:CONNECT_CR_SRVR_HELLO:wrong version number every time I run brew

user_6836673 0
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Title. I've been unable to run brew due to this error. I'm not currently running any proxies or any other things that would disrupt online connection. When I run it in verbose, it prints this.

/usr/bin/curl --disable --globoff --show-error --user-agent Homebrew/3.0.2\ \(Macintosh\;\ Intel\ Mac\ OS\ X\ 11.2.1\)\ curl/7.64.1 --header Accept-Language:\ en --retry 3 --location --range 0-1 --dump-header - --write-out \%\{http_code\} --output /dev/null https://homebrew.bintray.com/bottles/xorgproto-2021.3.big_sur.bottle.tar.gz
/usr/bin/curl --disable --globoff --show-error --user-agent Homebrew/3.0.2\ \(Macintosh\;\ Intel\ Mac\ OS\ X\ 11.2.1\)\ curl/7.64.1 --header Accept-Language:\ en --fail --retry 3 --location --remote-time --continue-at 0 --output /Users/cameron/Library/Caches/Homebrew/downloads/4a01df4ef68ab52d11137a08c3675ac23d552925e4e667998e6d88ce18918d5d--xorgproto-2021.3.big_sur.bottle.tar.gz.incomplete https://homebrew.bintray.com/bottles/xorgproto-2021.3.big_sur.bottle.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (35) error:1400410B:SSL routines:CONNECT_CR_SRVR_HELLO:wrong version number
homebrew curl
4 Answers

If you are just using curl for a post request, check that you are not using https instead of http.

user_58019060
user_6939950

It looks like there is currently a misconfiguration of the server or it is the wrong server to use. The server is not able to do any TLS handshake on port 443, no matter which client is used. From SSLLabs:

enter image description here

user_30810180

If you do not have permissions to modify your hosts file, you can also try this workaround:

~> HOMEBREW_BOTTLE_DOMAIN=https://dl.bintray.com/homebrew brew upgrade

to run the brew upgrade command while setting the HOMEBREW_BOTTLE_DOMAIN environment variable temporarily. It has solved my problem when upgrading my Brew packages.

user_47200250
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