S
Stefan Schipper
Hi guys,
just to give you a short introduction on my environment.
- DirectAccess on a 2012 R2 Server (virtual, 8GB memory, 2 vCPU)
- Windows 8.1 Clients
- Using IP-HTTPS
- Port Forwarding for 443 is done on our Juniper Router and there is no additional Firewall in between.
- Internet Connection in my company: 1GBit Down and Up
- Internet Connection at home: 200Mbit Down and 20 Mbit Up
DirectAccess itself is working without any issues BUT if I am working from outside using DirectAccess and I copy a file from a fileserver to my local drive I reach a maximum of ~300-400 kb/s. Additionally I can see that the transfer job is very unstable, stopping for a few seconds then continuing etc. It takes about 10 minutes to copy a 50MB testfile.
If I am doing it the other way round and copy a file from my local client to the fileserver I get my full upload speed (~ 2MB/s).
I am wondering why only the download (which will be the most important thing for our employees) is so slow and unstable while the upload is working fine? What I already tested:
- Tried it from different location with different internet connections (Mobile, Several Providers etc.) and I always see the same issue.
- Tried it with different clients (Win 8.1, Win 10)
- If I use a normal VPN connection to connect to my company I reach full speed for Up- and Download, so it is somehow related to DirectAccess.
- I know that IP-HTTPS is not as good as 6to4 and or Teredo, but this doesn't explain why the Upload is working fine and only the Download is so slow.
- I built a new DirectAccess Server within another Active Directory for testing purposes and I am facing the same issue.
- I already disabled 6to4, Teredo and ISATAP on my client for testing purposes but this is not bringing any performance increase.
Any idea how I can move forward to fix this issue? Has anyone seen this before?
Thanks a lot.
Stefan
Continue reading...
just to give you a short introduction on my environment.
- DirectAccess on a 2012 R2 Server (virtual, 8GB memory, 2 vCPU)
- Windows 8.1 Clients
- Using IP-HTTPS
- Port Forwarding for 443 is done on our Juniper Router and there is no additional Firewall in between.
- Internet Connection in my company: 1GBit Down and Up
- Internet Connection at home: 200Mbit Down and 20 Mbit Up
DirectAccess itself is working without any issues BUT if I am working from outside using DirectAccess and I copy a file from a fileserver to my local drive I reach a maximum of ~300-400 kb/s. Additionally I can see that the transfer job is very unstable, stopping for a few seconds then continuing etc. It takes about 10 minutes to copy a 50MB testfile.
If I am doing it the other way round and copy a file from my local client to the fileserver I get my full upload speed (~ 2MB/s).
I am wondering why only the download (which will be the most important thing for our employees) is so slow and unstable while the upload is working fine? What I already tested:
- Tried it from different location with different internet connections (Mobile, Several Providers etc.) and I always see the same issue.
- Tried it with different clients (Win 8.1, Win 10)
- If I use a normal VPN connection to connect to my company I reach full speed for Up- and Download, so it is somehow related to DirectAccess.
- I know that IP-HTTPS is not as good as 6to4 and or Teredo, but this doesn't explain why the Upload is working fine and only the Download is so slow.
- I built a new DirectAccess Server within another Active Directory for testing purposes and I am facing the same issue.
- I already disabled 6to4, Teredo and ISATAP on my client for testing purposes but this is not bringing any performance increase.
Any idea how I can move forward to fix this issue? Has anyone seen this before?
Thanks a lot.
Stefan
Continue reading...