excessive wireless dropoffs with Dell tablets and VPN-based hosted application
Posted on 2012-12-27
I have a doctor’s office that has several wireless tablets and laptops, they’re all Dell’s based on the doctor’s individual preferences. Most are XT3 tablets.
We have a hosted application on the cloud with a VPN connection to the hosted data center using Comcast Internet and Cisco ASA devices. Prior to Comcast we had AT&T DSL. I only mention this, as we’ve had problems with both Internet providers on our end.
The problem is the doctors get booted off of the Remote Desktop session several times a day. Note again they are all wireless. Any of the offices hardwired machines do not get the session drop at the same time.
On one of the more common devices, I have done all the updates for the system - bios, wireless adapter, video, even sata drive firmware, etc. none of this has helped.
Since the hardwired desktops do not drop I have been focusing on the wireless is the issue. I have tried two different wireless access points, both on the higher end, both I’ve used before with great success. When I walked the office with the tablet I consistently have between 4 to 5 bars, which means 80 to 100%, no matter where I’m at.
I’m starting to suspect it is an issue with the VPN and wireless devices, whether it be timing, packet size, etc. related.
Any help or a direction would be greatly appreciated.