Discovered a very strange behavior when accessing my ISY-26 (f-w 2.6.4) from my BB today (8230/TMobile-Edge).
Logged into the ISY-26 successfully, got the HTML screen and selected DEVICES. Got my device list and selected a controller. Controller came up and I set the device ON. Command sent and verified successfully. About 30s later, I sent the OFF command from the same screen and the response to the request "timed out" with "Command error occurred with the seclected Mobile Data service..." Tried again, same timeout error.
At this point, I selected DEVICES and the command successfully went thru and displayed my devices screen with updated status.
From here, I did the same thing again with another device (selected device, tried to turn on-then-off) and received the same timeout message after the first command was successfully executed. Doesn't matter if you send ON first or OFF then ON, same timeout issue on the 2nd send.
Going back to the DEVICES screen repeatedly allows you to select a device, send one command (at least ON or OFF), but then it will lock up to any further device commands before returning to the DEVICES screen.
This seems to be a bug... or my BB is behaving badly...
Dave