I have two Dell laptops (different models) that are having an issue with Outlook going offline randomly when docked in the office. The docking stations use an Ethernet cable to connect to the LAN. When Outlook goes offline mapped network drives stay connected.
Laptops use SonicWall Global VPN Client to connect to the office LAN when working from home. No correlation between having used Global VPN client at night from home and then Outlook going offline when docked at the office the next day. Not sure if having VPN client matters.
We have discovered that when these users turn off wireless, using the switch on the side of the laptop, Outlook does not go offline.
The office wireless connection uses a different ip scheme than the LAN. Lan is 10.1.1.x, wireless is 192.168.1.x. Wireless is just for phones and guests that need internet access.
We have other laptops that do not have the issue, but they are in a part of the building that does not get a strong wireless signal.
Any idea what might be causing Outlook to go offline when wireless is turned on? Any help is appreciated.