Persistent ERR_CONNECTION_TIMED_OUT & ERR_SSL_PROTOCOL_ERROR errors with devtunnels

[lmbrandon]

Haven't been able to use devtunnels.

trying different browsers. I've tried switching clusters. trying on a different pc - mac and windows. Even tried with different projects - python flask & next.js I use the -v flag and i see no issues but when i visit the site i always get a ERR_CONNECTION_TIMED_OUT error.

I also get ERR_SSL_PROTOCOL_ERROR's when i go to the https://{random-string}-PORT.use.devtunnels.ms url I'd appreciate some help with this.

[kdestin]

I've been running into the same issue

Repro

1. Run through the devtunnel quickstart

# Start a http server on port 8080
> devtunnel echo http -p 8080

Echo server listening at http://127.0.0.1:8080/ (ws://127.0.0.1:8080/)

# Tunnel port 8080
> devtunnel host -p 8080
Hosting port: 8080
Connect via browser: https://{LABEL}.use.devtunnels.ms:8080, https://{LABEL}-8080.use.devtunnels.ms
Inspect network activity: https://{LABEL}-8080-inspect.use.devtunnels.ms

Ready to accept connections for tunnel: peaceful-ant-grl2mxg.use

Expected outcome

Using either URL (https://{LABEL}.use.devtunnels.ms:8080 or https://{LABEL}-8080.use.devtunnels.ms) should allow me to connect to the devtunnel

Actual outcome

• Trying to connect to https://{LABEL}.use.devtunnels.ms:8080
  • Causes my browser to load for a while, eventually timing out
• Trying to connect to https://{LABEL}-8080.use.devtunnels.ms fails with an ssl error
  • My browser claims that the website has no certificate
  • curl shows the following

    *   Trying XXX.XXX.XX.XXX:443...
    * Connected to {LABEL}.use.devtunnels.ms (XXX.XXX.XX.XXX) port 443 (#0)
    * ALPN, offering h2
    * ALPN, offering http/1.1
    *  CAfile: /etc/ssl/certs/ca-certificates.crt
    *  CApath: /etc/ssl/certs
    * TLSv1.0 (OUT), TLS header, Certificate Status (22):
    * TLSv1.3 (OUT), TLS handshake, Client hello (1):
    * TLSv1.2 (IN), TLS header, Unknown (21):
    * TLSv1.3 (IN), TLS alert, close notify (512):
    * error:0A0003E8:SSL routines::reason(1000)
    * Closing connection 0
    curl: (35) error:0A0003E8:SSL routines::reason(1000)
    

• I am able to hit an auth page with either url if I use http instead of https

[ihcnet]

I have the same issue. I've tried it on macOS and windows, same experience with either. Attempting to load the URL results in ERR_SSL_PROTOCOL_ERROR. If I attempt to view the cert, it shows the following message, "This site does not have a certificate."

The steps that @kdestin mentioned are the same nes I raun into. Even attempting to view the "Inspect network activity" URL fails to load.

Any updates on this issue?