[1909] GPP Proxy bypass not applying

[CHiLL]

I don't know why, or for how long, but I've noticed our proxy bypass GPP rules aren't applying, but specifically just the bypass rules. In the IE10 rules, if I remove the check for 'Use a proxy server for your LAN', this setting it applied to the clients and they don't have the proxy set. If it it then checked again, the proxy is set. But regardless of whether I check the box for 'Bypass proxy server for local addresses' or not and specify entries in the Advanced box, these settings do not apply to the user. The check box for bypass the proxy server just remains unchecked and there are no entries listed in the Advanced box. It's not conflicting policies, but I can see I'm editing the winning/applied GPO.

 

There is also no associated registry key for the user:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
ProxyOverride"=""

 

If I add that registry key in manually via GPP, then the proxy bypass is checked and the entries specified in the registry key are listed.

 

I don't know why checking the box doesn't work, I'm at a bit of a loss at the moment.

Edited February 25, 2021 by CHiLL