While it is tempting to sympathize with the OP, I'm going to note there is nothing there that says unquestionably "railroading" to me, just player impatience, which could be more or less justified. When I game, I expect stuff to happen. Some of it will by my PC's doing, some of it will not.
If you really wanted to game "heroic fantasy," the game would involve lots of NPCs and deus ex machina. I think would most of the responses in this thread are suggesting is that the PCs should get to do something.
But I'm not at that game table. Maybe the PCs can do something and are expected to, but the players are sitting around waiting for the "now is the time when you do something" signal and it doesn't come. I've had it happen, even to the point of one player harassing one of my NPCs and making a comment about "Clicking on the plot" before I exlaimed in exasperation, "He's not important! He's just a dude. Would you guys just decide whether you want to go planetside or take the job or what?"
Maybe it's a big railroad job. But maybe it's someone complaining on in the Internet because they don't understand the root problem. It could simply be a difference of opinion in what a game is supposed to be like.
As noted above, it's time to talk to the DM and ask what is supposed to be happening.