Ah that brings back memories. "but, but I had shield up...hey guys didn't I say I cast shield? Like half an hour ago?"
"Well, it wore off then"
"No, no it's only been one melee round, and one melee round is 6 seconds"
"No, one melee round is a minute"
"No, it was a minute in 1st edition but now..."
"But anyhow, the duration is one round per level so"
That is the single greatest thing about the online games: combat goes quickly and you either did it, or you didn't. If you care to find out, parse the log file.
____________________________Do the right thing.