Slow Download when installing the game.

[Oxidated]

Hey, not exactly sure if this is the correct place for this but thought I'd ask anyway. When trying to install this game I recieve very slow download (0B-40KB p/s) speeds in a burst manner. This is the only game I am experiencing this issue with, as I have recently installed another game at higher speeds 2.5MB p/s peak. I have tried resetting my intenet connection by unplugging both my router and cable modem, tried direct connection to the modem, and even tried deleting the downloaded portion and restarting. Any ideas on where to go from here?

[Adriel]

Hi Halcyon! Unfortunately that's something on Valve or your ISP's end.

[EpochFlame]

I had the same issue. Just power off the router for about 15 seconds before restarting it. If it's still slow, just deal with the speed until it finishes downloading.

[NuG3hm+]

Not trying to offend you, but perhaps it's your computer! That, or Steam's being a little buggy (no suprise there...)!

[lucifertdark]

It's funny but this is happening to me right now, only on this one game, I just downloaded another game that's a bigger download & it took just a few minutes, this game says it's going to take days.

[Oxidated]

It turns out i've had this issue with a few more games on multiple linux distros, and from what I can gather it has something to do with either aggressive dns queries or the way that steam access disk i/o. Never really found a solution aside from letting it continue to download until it completes or a steam update.

[peka]

It's not him or his comp, because it's happening to me too. I believe you Halcyon..

[peka]

Stops at 15% every time

[Eddie]

Same here, I have 150mb down So it is not my ISP... I really wanna try this game out!

[keellota]

To anyone that searches this problem, don't worry the game will eventually download.

Also had this problem. Tried installing to both SSD and disk on one computer and on another computer. Also tried on two different networks. Only for this game as well, other games installed fine. Begins with consistent download, then cuts out, then small slow bursts of download. Fortunately, the bursts only happen till around 300MB downloaded, then normal consistent downloading returns until finish (at w/e your internet speed is).

Not an ISP problem, hard drive problem, etc.
I think it may have something to do with how the game is installed (like order of files, size of packets, or something). Disk usage shoots up to 100% during the bursts, even though disk usage only shows like some few KBs (clearly not 100% of SSD throughput).

[Sapphire02]

I have the same issue... first download runs fine with up to 6MB/s or so. Then when I have around 250MB downloaded, download speed goes down to an average of 40kB/s, then to 0, then back to some kB etc... even if I manage to get all the data downloaded it shows that all the 1,3GB have been downloaded but then says that the Update was stopped. If I try to start it up again it starts again downloading from 0...
I even copied the game files from my laptop to my new computer, but these aren't accepted either...

[The War-Nung]

I believe Halcyon. I just bought a new laptop and have been busy installing 21 Steam games. The first 20 games I installed averaged a download speed of over 6 mbs/sec. The final game, CotND, is averaging out at less than 100 bytes/sec. Also, the total download size is listed at over 4.7 gigabytes, which seems excessive for an indie game, even considering that I got the extended version with all the soundtracks. I could use some help with this. I legitimatelly have no idea what's going on here.

[radionyx]

Mine is happening that too! :( Does anyone have any solution? My always stops at 20%, and when I restart Steam, it goes back to 0%. I really want to play, someone can help?

[jimbowen]

Exactly the same problem, for the second time on two separate Linux machines. As other people have said, other games work absolutely fine, and download literally a thousand times faster (6MB/s as opposed to 6kB/s for Necrodancer)

While I was bored waiting for the 10kB/s download, I had a look at wireshark, and I can see the problem (sort of) - 90% of the packets are either duplicate ACKs, out-of-order, retransmission or "previous segment not captured". Thus 90% (or more, perhaps) of the wireshark scrollbar is highlighted in black (colour code for wasted packets due to retransmission etc) rather than the usual green for normal data exchange.

So for some reason, TCP ACKs are not getting through, and data is being retransmitted. So the TCP exponential backoff algorithm kicks in, and limits the speed to a snail's pace in an attempt to get more reliable communication. None of the packets seem to be "invalid checksum" so it's not a bad link, it's that the ACKs are being lost.
Does Necrodancer use a different server to most steam games? It's being downloaded from 78.129.164.123, which is apparently "IOMart Hosting Ltd".

On the previous machine, the problem magically went away after about half an hour. This time it's been 35 mins and.. I was going to say it's still slow, but It's started downloading at a half-decent speed. Finally!

Definitely something fishy going on!!

[jimbowen]

I take that back :(
1h 15m since download started now, and it has only downloaded 50MB. Currently 3.5kB/s ETA 4 days. WTF?

[jimbowen]

Ok, I am now downloading at full speed again. I checked wireshark again, and this time it is coming from 162.254.196.19, which is a Valve Corporation server. All of the packets are green.

I wonder if *some* of the NecroDancer's content is not distributed by Valve, but by the game publisher, on their own super ♥♥♥♥♥♥ servers at IOMart Hosting Ltd, whoever they are. Either that, or Valve is outsourcing some of their content delivery to sucky servers.