I’d post this in the thread specifically for 5.3.2, but the truth is that I’ve had this problem before with 5.3.1 as well. The downloader just stops mid-download and says some error occurred. Sometimes it even happens while loading the component list. I haven’t been able to get a 5.3.2 download to work yet, so I’m stuck on 5.3.1!
Alright, I’m having this issue for the 5.3.3 installer as well. I still can’t even load the component list. I’ve already contacted my ISP and there aren’t any issues in my networking setup. It’s not local to my machine, my teammate is having the exact same issue.
Unity! Help!
I’m having the same issue and no one’s responded to my thread either :/… Stops at
Downloading http://netstorage.unity3d.com/unity/e87ab445ead0/Windows64EditorInstaller/UnitySetup64.exe Installing Unity 5.3.2f1… Execute: “C:\Users\AAAAAAA\AppData\Local\Temp\nswB377.tmp\UnitySetup64.exe” -UI=reduced /D=C:\Program Files\Unity Downloading http://netstorage.unity3d.com/unity/e87ab445ead0/WindowsDocumentationInstaller/UnityDocumentationSetup.exe Installing Documentation… Execute: “C:\Users\AAAAAAA\AppData\Local\Temp\nswB377.tmp\UnityDocumentationSetup.exe” /S /D=C:\Program Files\Unity Downloading http://netstorage.unity3d.com/unity/e87ab445ead0/WindowsDevelopmentWebPlayerInstaller/UnityWebPlayerDevelopment.exe Installing Web Player… Execute: “C:\Users\AAAAAAA\AppData\Local\Temp\nswB377.tmp\UnityWebPlayerDevelopment.exe” /S
Replaced my comp’s folder name with 7 A’s(AAAAAAA) but that’s the message the installer is at again… I’ve task manager turned it off and restarted t again… it’s stuck at this spot AGAIN. =.= Plz someone help?
My thread’s here Unity Installer stuck?... - Unity Engine - Unity Discussions
Hi! That is incredibly interesting. I’m pining folks buried in server stacks to see if there was a server down so data was slow or what is going on. Thank you so much for a snapshot of the error. 
I will update you soon!
Great! Thanks for looking into it.
This might or not might not be helpful, but I’ve been having this problem ever since Unity started the module based installations. If its a server down, it’s been down a long, long time. (at least a month).
I thought it might be Charter doing something weird, but they say its on Unity’s end. I’m just not sure how we’re having this issue but very few if anybody else is.
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Hi @eshan-mathur Quick update: It appears to have been a CDN issue. Purging the network seems to have resolved the issue, but if you could confirm that would be amazing! Thank you so much!
@holliebuckets_1 no luck! The installer still gets stuck at arbitrary times. “Requested URL was not found on this server.” It’ll download quite fast for the first few tens of MB, then just stop. No matter how many times I hit retry, it won’t continue. Once I fully force quit the installer and run it again, it’ll just repeat that behavior.
I appreciate you looking into this - hopefully we can resolve this soon. Let me know if you want me to dig deeper and run any kind of diagnostic.
Unfortunately, having this same issue, but with 5.3.1. Any help would be greatly appreciated.
Thank you very much for updating me @eshan-mathur and @Nehvah I have linked this forum thread to our Tech Ops team and will keep you informed as I get updated. I am so sorry for the troubles - I really want you to be able to use Unity!
@eshan-mathur @Nehvah @Alister Can you all try again and please update me on if you were successful and if you have issues with builds other than 5.3.1? Tech Ops has really worked hard on this one! It should be resolved, I just want to confirm.
@holliebuckets_1 @Nehvah @Alister Thank you guys so much for helping out with this - unfortunately the problem still persists!
I got 58.6 mb of the way through and I got a failure. No amount of retry helps. Same problems.
I’d be happy to dive deeper technically if you guys need more diagnostic information, just let me know how I can help. Would love to upgrade soon 
bah! this is horrible!! Thank you so much for the update! I’m going to try and have one of the team members work directly with you on this will you be online for a bit?
yes! i’d be happy to provide you with more real time contact info. let me know.
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Hi @eshan-mathur this is @karsten99 He is going to be taking over for a bit. I’ll still keep tabs and always be a source of contact. Everyone wants to get this resolved, so thank you so much for working with us and being so nice!
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Hi,
Can I get you to run in a terminal
ping -c 2 netstorage.unity3d.com
host netstorage.unity3d.com
and post the output ?
Then we get a better understanding on what is going on.
Thanks
Hey @karsten99 ,
here’s the output:
Eshans-MacBook-Pro-1:~ Eshan$ ping -c 2 netstorage.unity3d.com
PING a1978.g.akamai.net (23.216.10.234): 56 data bytes
64 bytes from 23.216.10.234: icmp_seq=0 ttl=54 time=17.453 ms
64 bytes from 23.216.10.234: icmp_seq=1 ttl=54 time=21.875 ms
--- a1978.g.akamai.net ping statistics ---
2 packets transmitted, 2 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 17.453/19.664/21.875/2.211 ms
Eshans-MacBook-Pro-1:~ Eshan$ host netstorage.unity3d.com
netstorage.unity3d.com is an alias for netstorage.unity3d.com.edgesuite.net.
netstorage.unity3d.com.edgesuite.net is an alias for netstorage.unity3d.com.edgesuite.net.globalredir.akadns.net.
netstorage.unity3d.com.edgesuite.net.globalredir.akadns.net is an alias for a1978.g.akamai.net.
a1978.g.akamai.net has address 23.216.10.234
a1978.g.akamai.net has address 23.216.10.217
Eshans-MacBook-Pro-1:~ Eshan$
Thanks!
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Hey @eshan-mathur
Thanks
One other question what is your public ip ?
You can find it at https://www.whatismyip.com/
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@karsten99 public ip: 71.84.206.76
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Thanks that helped a lot
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I have tried to reproduce the error you get, but I am not able to get that error.
I will try to work with the team that makes the installer to get this reports automatically so that we will get notified of errors when they happen.
Thanks again for your help.
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