# Java Web Start problems **URL:** \ **Category:** Archived Topics\ **Created:** [October 27, 2008, 8:21pm UTC](https://forum.inductiveautomation.com/t/java-web-start-problems/856 "2008-10-27T20:21:04Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![AlThePal](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/althepal/32/3603_2.png) [@AlThePal](https://forum.inductiveautomation.com/u/AlThePal)\ **Post date:** [October 27, 2008, 8:21pm UTC](https://forum.inductiveautomation.com/t/java-web-start-problems/856/1 "2008-10-27T20:21:04Z")
I’ve recently set up remote access to a customer’s site via a VPN connection. I am frequently having a problem with Java Web Start when I try to run the application remotely. The download starts OK, but once it reaches about a third of the way through, it stops and displays the error “Download Stalled”. Has anyone else had this problem and is there anything I can look at to find out what is going wrong? ---
**Author:** ![Carl.Gould](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/carl.gould/32/7262_2.png) [@Carl.Gould](https://forum.inductiveautomation.com/u/Carl.Gould)\ **Post date:** [October 27, 2008, 8:32pm UTC](https://forum.inductiveautomation.com/t/java-web-start-problems/856/2 "2008-10-27T20:32:39Z")
1. What version of Java are you running on the Client end of this connection? 2. Try clearing the java-webstart cache (Control Panel -\> Java -\> Temporary Internet Files/Settings -\> Delete Files…) and see if after that, anything changes. I’ve never heard about this one, but [a quick google search](http://www.google.com/search?client=opera&rls=en&q=java+web+start+Download+Stalled&sourceid=opera&ie=utf-8&oe=utf-8) shows that you’re not alone. ---
**Author:** ![AlThePal](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/althepal/32/3603_2.png) [@AlThePal](https://forum.inductiveautomation.com/u/AlThePal)\ **Post date:** [October 27, 2008, 10:05pm UTC](https://forum.inductiveautomation.com/t/java-web-start-problems/856/3 "2008-10-27T22:05:43Z")
Hi Carl, I’m running Java version 6 update 7 on the client. Clearing the cache didn’t make any difference - it still seems to stall at about the same point every time. Al ---
**Author:** ![Carl.Gould](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/carl.gould/32/7262_2.png) [@Carl.Gould](https://forum.inductiveautomation.com/u/Carl.Gould)\ **Post date:** [October 27, 2008, 10:22pm UTC](https://forum.inductiveautomation.com/t/java-web-start-problems/856/4 "2008-10-27T22:22:06Z")
Do you have any other client machines available to see if it is a machine-specific problem? What kind of VPN connection is it? ---
**Author:** ![AlThePal](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/althepal/32/3603_2.png) [@AlThePal](https://forum.inductiveautomation.com/u/AlThePal)\ **Post date:** [October 28, 2008, 8:03pm UTC](https://forum.inductiveautomation.com/t/java-web-start-problems/856/5 "2008-10-28T20:03:16Z")
It’s an IPSec VPN. I tried both Java 6 update 3 and Java 6 update 10 on the same machine without any apparent change in behaviour. I then noticed that although the dialog box said ‘Download stalled’, there was still activity on the network. I left the dialog open for another few minutes and the progress bar started moving again. This happened a few times, but eventually the system started. I’m going to investigate the throughput of the link later this week. ---
**Author:** ![Carl.Gould](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/carl.gould/32/7262_2.png) [@Carl.Gould](https://forum.inductiveautomation.com/u/Carl.Gould)\ **Post date:** [October 28, 2008, 8:14pm UTC](https://forum.inductiveautomation.com/t/java-web-start-problems/856/6 "2008-10-28T20:14:59Z")
Sounds good. I have seen it say “Download Stalled”, but it always has recovered in about 10 seconds in my experience. And this was always over VPNs. Maybe Java Web Start is a bit touchy about network speeds.