I'm having problems with only two laptops which aren't getting their internet proxy settings applied from group policy when the users and myself (domain admin) log on.
We are running a windows 2003 server environment with windows xp and internet explorer 7. Users have roaming profiles. Now I don't think there is anything wrong with our group policies, domain, dns as this problem is only affecting these two laptops as all the other desktops and laptops are working fine when these two users and other users log on to them.
I've tried removing the computer from the domain and deleted the computer account from AD and then rejoined it but that hasn't worked. If I run gpupdate from the command prompt on the two affected laptops then it updates the proxy and all is fine but I don't understand why this isn't done during the logon process. It seems that any changes I make to the computer are reverted back to the previous settings when I reboot even if I manually add the proxy settings to the registry.
We did make a group policy change to the proxy settings a short while ago but since the change the update was applied to all pc's but I can't remember if this problem started at the same time as when the change was made. It was certainly around the same time when this problem occured.
Any help would be appreciated as I've gone in circles trying to find a solution to this.