Good Sirs and Madams,
We have a strange problem with one of our customers.
When the option in proxy-settings in Outlook 2013 "On fast networks, connect using HTTP first, then connect using TCP/IP" is turned on, Outlook 2013 as a whole is really slow. When I uncheck that option, Outlook 2013 is fast again.
But when the PC is rebooted, the checkbox is ticked again. It doenst seem to remember that option. As a result, Outlook 2013 is slow again. How can I make sure the option is remembered?
Things I have tried:
Finding a Powershell command for this. Only found a powershell 2010 command which doesn't work on Exchange Online. Forcing a GPO is no possibility because its just a small office which doesn't use a domain.
Any help would be greatly appreciated!