Secure Connection Failed

Site: https://pchn63101-24-25.netlify.app/

My site had been working fine with no issues for a month or so, but now some users of my site are getting the folowing message:

Secure Connection Failed

An error occurred during a connection to pchn63101-24-25.netlify.app. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the web site owners to inform them of this problem.

I also get this message when I use my institutions wifi but not when I use 4G.

I made a duplicate of the site (all the source files are identical) which has no issues:

https://pchn-63101-2024.netlify.app/

I can’t figure what caused a change in the original site, or why an identical copy would not have the same issue.

Thanks!

Hi, @grgf. As a first troubleshooting step, would you please share the output of the following command here?

curl --compressed -svo /dev/null https://pchn63101-24-25.netlify.app/

This should reveal more information about what is happening.

Hi Luke, thanks for getting back to me.

Here’s the output:

  • Host pchn63101-24-25.netlify.app:443 was resolved.
  • IPv6: (none)
  • IPv4: 18.192.94.96, 35.156.224.161
  • Trying 18.192.94.96:443…
  • Connected to pchn63101-24-25.netlify.app (18.192.94.96) port 443
  • ALPN: curl offers h2,http/1.1
  • (304) (OUT), TLS handshake, Client hello (1):
    } [332 bytes data]
  • CAfile: /etc/ssl/cert.pem
  • CApath: none
  • Recv failure: Connection reset by peer
  • LibreSSL/3.3.6: error:02FFF036:system library:func(4095):Connection reset by peer
  • Closing connection

Hi @grgf,

This is only happening on a specific network?

The line:

Recv failure: Connection reset by peer

Suggest it’s a issue with the network you’re trying to connect from. It could be an issue with the secutiry policies in place on the network. Have you tried contacting the network administrator?

I am having this same issue, with the same output from curl:
Recv failure: Connection reset by peer

What’s weird is that Firefox and Chrome refuse to connect, but Safari connects just fine. So how could that be a problem with the network?

The error from Firefox:
PR_CONNECT_RESET_ERROR

Chrome:
ERR_CONNECTION_RESET

Hi @allanberry,

There could be additional security policies on Chrome/Firefox that safari doesn’t have. Can you confirm the OS for each browser? And if this is occurs on every network you try?

Like @Melvin said, this is likely to be a network connection issue on your end… especially if Safari is working.

Thanks,

Thanks. So this is a new one to me; to make sure I understand the diagnosis when I ask my sysadmin: my university network may have security policies in place to which Firefox and Chrome adhere, but which Safari ignores? What kind of security policies might do that?

I don’t care much about this current app (it’s a test app of no consequence). Other Netlify apps of mine (example) seem to work OK on all browsers, which makes me think there’s something wrong with how the broken app is written/configured.

What concerns me is that future apps I ship on Netlify may not work for people within my network, and I’ll have to consider another host? I’m pessimistic my network administrators will adjust security policies on my behalf.

I’m on Mac Sonoma 14.6.1; Firefox 134.0; Chrome 131.0.6778.86; Safari 17.6. I’ll check on my home network this evening.

Thank you!

Not quite… It’s more the idea that your system admins have “ignored” Safari and any rules that have been set are not applicable to Safari. I’d definitely give them an email to see if there is anything they can adjust since there are quite a few big companies that use Netlify and if they are blocking everything Netlify hosted then that could be a problem for the University in the future.

Can you confirm if your personal website works on the University’s network?

Best of luck :slight_smile:

Testing a bit more. It seems the problem concerns the *.netlify.com subdomains? For my personal site, these two serve identical content:

The custom domain indeed works on all browsers; the subdomain one only works on Safari.

I’ll ask my sysadmin if Netlify subdomains have access restrictions or something. It’s still weird to me that Safari works though? I’ll check from home tonight.

Yes, as I thought. There must be a rule that blocks the .netlify.app subdomain. Please check if this works on your home network, if it does then it’s most certainly an issue caused by your system admins which we cannot help with.

Thanks

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