Just a heads up, I did update to latest firmware last night. Same issue. 

Did you get a resolution for this? I am having same issue

You login, work on another browser tab for a minute or so and go back to the switch and you are still logged in? I get logged off. 

Still not fixed with new firmware. Getting logged off before 10 mins that I have set. 

This issue is still occurring despite disabling "Alert icon Blinking". Any resolution coming? We are going to purchase more switches but are going to get them from Dell if we can't get this fixed. SG350X-48 48-Port Gigabit Stackable Managed SwitchAct...