Question

We are currently evaluating upgrading from XP to Windows 7, but have one last sticking point, we can’t seem to run our Java RMI application from Windows 7.

I’m using the same JRE / Classpath from both machines, is there any other gotcha’s that I’m missing?

Update

I have run Wireshark on both machines, and it appears the Windows 7 box makes the request, but the response coming back from the server fails with

Trans2 Response, QUERY_PATH_INFO, Error: STATUS_OBJECT_PATH_NOT_FOUND

any ideas where I go from here?

Update 2

I have created a fresh XP installation (gotta love virtual machines) and the application runs without a problem, clearly something has changed in Windows 7

Update 3

We’ve created a fresh Windows 7 install, in the same datacenter as the server and that connects fine, so my friendly(!) network admin needs to sort out his network, definitely looking like a firewall issue somewhere. Thanks to all (especially Lucian) for all the time you’ve spent on this.

Answer 1

In case this helps anyone in future, there was a “Policy Map Inspection” on our Cisco router, we disabled “inspect skinny” and everything works. Cisco Tech note this was stopping all returning RMI traffic before it made it to the firewall, so was very hard to debug.