IE needs to open a web page before Chrome will work

[SaintJ]

Hi all,I have an interesting problem which you may be able to help with. After logging on a user cannot access the internet (page cannot be displayed) using chrome until a web page in IE is successfully opened, after this Chrome works perfectly. This doesn't occur all the time but happens enough to be annoying and isn't PC specific. Browser config is done by automatic configuration script and group policy. DNS seems to be functioning ok throughout the site. We use the Forcepoint Web Security Cloud product for web filtering and my question is does anyone else have this issue? Thanks for any help.

[Edgehill]

Are you using a proxy server?

We used to have Chrome set to use the system proxy, after resetting a profile users would need to open IE to populate the proxy settings in Chrome.

If you are using slightly older versions of Chrome (before 70 I believe) you can check proxy settings by navigating to Chrome://net-internals

[SaintJ]

Yes we do use an upstream proxy server set by the PAC file. Our profiles are set to mandatory. When chrome eventually works the net-internals command shows the PAC is being used, its just this need to open IE first is so annoying. Thanks for the reply.

[Arthur]

I remember having the same issue when my school used proxy .pac files with Smoothwall (which is quite a few years ago now).

 

I think I disabled one of the Chrome GPOs below or unticked the "Automatically detect network settings" box in Internet Options.

 

Administrative Templates > Google > Google Chrome

[list]
[*]Allow QUIC protocol = Disabled
[*]Enable network predication = Enabled, but set to 'Do not predict network actions on any network connection'
[/list]

Administrative Templates > Google > Google Chrome > Proxy server

[list]
[*]Choose how to specify proxy server settings = Use system proxy settings
[/list]

 

Edit. It might have also been this...

 

User Configuration > Administrative Templates > Windows Components > Internet Explorer

[list]
[*]Disable caching of Auto-Proxy scripts = Enabled
[/list]

 

More info: https://support.microsoft.com/en-gb/help/271361/how-to-disable-automatic-proxy-caching-in-internet-explorer

 

^ Try that first.

Edited March 26, 2019 by Arthur

[SaintJ]

Thanks Arthur, will test and get back to you