Little more info from DIM

I'm sitting on an AMTRAK train, trying to download content using DIM but certain products keep failing. Finally, I tried downloading directly and got a message that there was a limit on file size. (AMTRAK's restriction). Is there a way to get a more meaningful message from DIM when this happens?
Comments
Is there any further detail in the log? I'm not sure how the browser message is generated -- if it's just passing along a message from the gateway I'm not sure that DIM would be capable of giving more information.