Bug #10538

"This Site Can't be Reached"

Added by Matt Gold over 3 years ago. Updated over 3 years ago.

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Hi Boone,

Lately, when I click on a link from an email notification, I briefly (for a second or two) see an error message that says "This Site Can't be Reached." The page then resolves to a CAC link and the page loads normally.

I've been trying to capture a screenshot, but it happens just quickly enough that I've been unable to.

I'm not sure how/whether you can reproduce, but perhaps you can try? I do have the Chrome extension HTTPS Everywhere active in case that might make a difference


#1 Updated by Matt Gold over 3 years ago

Also, just FYI, I just visited and experienced the same thing, which tells me that this may have something to do with the GC's server configuration.

#2 Updated by Matt Gold over 3 years ago

also, this only happens when I am visiting one of these sites after not having been to them for some time. When I go to the site a few minutes later, I dont' see the same warning. when I go an hour or so later, I do.

#3 Updated by Matt Gold over 3 years ago

Oh, and underneath "this site can't be reached," it says "check the proxy and firewall." and I just experienced it on Redmine, too

#4 Updated by Boone Gorges over 3 years ago

  • Status changed from Assigned to Reporter Feedback

It sounds like a DNS issue, perhaps related to the Graduate Center. See!topic/chrome/sv0YttC20cU

The suggestion in that thread is that you disable the QUIC feature in Chrome. See

#5 Updated by Matt Gold over 3 years ago

  • Status changed from Reporter Feedback to Resolved

Thanks! I've disabled the QUIC feature and so far, so good

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