So I don't know about you guys, but the main reason I end up playing on the same bloody stock maps is because I get a missing map error like this whenever I join a server running custom maps: I got this image from a reddit page where some one had exactly the same problem, and I know from looking around that there are many threads on many TF2 forums and subforums, from steamcommunity to probably here as well. I also perfectly realise that many, many solutions have been suggested and all of those have worked for someone at some point in time, and yet for me personally nothing has worked. The only reason why this problem doesn't get more attention, is that after a couple of months, TF2 suddenly decided it wants to download custom maps again and I continue as if nothing was ever wrong. Except then it happened again, and just fixed itself when I went to make a thread. Yet I do not want to just shrug and wait until the next time it rears it's ugly head. Let's get to the bottom of this: after all, as TF2's biggest custom mapping community we have a vested interest in fixing this. So, I propose that the temporary solution is just to list all the fixes we find and hope that people are patient enough to try everything. However, if any of you are smart and talented enough to dig a bit deeper and find a panacea to this issue, it'd be very welcome. As far as I can tell, this issue has been around for years and not been fixed. Let's see if we can pick up where Valve has failed. I'll update this soon with the first few fixes when it isn't late when I should be sleeping.