Google Chrome 'Your connection is not private'

[cdwyer]

Hi all,

 

This has slowly affected more and more machines within our domain.

 

When attempting to connect to Youtube and quite a few other HTTPS sites, an error message appears saying 'Your connection is not private' with NET:ERR_CERT_WEAK_SIGNATURE_ALGORITHM

 

I'm guessing this is to do with the way our Lightspeed Rocket is handling the traffic, but i'm not sure how to fix it.

 

Any help would be much obliged.

 

Thank you!

[rom1984]

I had a similar problem and Lightspeed needed to remote into the rocket to make the changes. They said it was a known problem but didn't actually provide the fix to me, they said they needed to actually remote in to resolve it.

[duzzie]

We are having the same issue, ours is a problem with certificates and eSafe software. Smoothwall have been looking into it as it seems it is an issue on their side. To get round it we have turned off SSL inspection (temporary)

[fiza]

What version of Chrome does this affect?

[cdwyer]

What version of Chrome does this affect?

 

Version 58 I believe it is! I've just contacted lightspeed and will update with what they say.

[fiza]

I'm on Chrome 58.0.3029.110 and using Smoothwall (Glamis 3) with no issues. We have https inspection enabled.

[korifugi]

We're running 58.0.3029.110 behind a Sophos UTM and are affected.

[TechMonkey]

Is this not the Chrome 58 issue reported before? Lightspeed need to update their certificate or you can set a GPO or push out a Registry key to set Chrome to temporarily ignore the issue. Until Chrome 66

 

EDIT: This thread - http://www.edugeek.net/forums/internet-related-filtering-firewall/182708-google-not-secure-your-connection-not-private.html

Edited May 16, 2017 by TechMonkey

[cdwyer]

I have tried the reg key which doesn't appear to be working unfortunately, do you know off the top of your head what the method was using GPO?

[Duke5A]

If I had to guess the cert it's complaining about uses SHA1 for its signature.