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VDSL 50 - Only 16 through ASG

Hello everybody,

today I finally got my VDSL 50 connection from the German Telekom. I have a Speedport W920V connected to the VDSL line. When I connect my laptop directly to the router, I get speeds of 45-50MBit (tried different tests, results very consistent). Then I connected my ASL 7.503 running on a Dell machine to the router (DHCP, not PPPOE on the ASG) and again I get consistent results - but only at 16MBit. Upload, however, is fine! Whatever I tried, results were always the same. Here's what I did:
- Turned autonegotiation off
- changed NIC
- used a totally different machine (ASG 220)
- IPS on/off
- QoS off
- MTU 1500 or 1492
- HTTP proxy on/off (caching gives me 30MBit, but that's cheating!)

Any ideas?

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0 William Warren over 15 years ago

I'm not familiar with any flavor of DSL over there..are you sure you don't use pppoe?
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0 christianlouis over 15 years ago

Just an idea: try to check if you can get the full VDSL speed when e.g. downloading a file via wget from the command line to find out if the problem is related to any of the content filter modules.
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0 Billybob over 15 years ago in reply to christianlouis

If the specs etc are ok on your machine and you have double checked your cables/NIC etc, make sure that TCP window scaling is enabled under packet filter-->advanced. With nothing else running and just regular netfilter rules, you should be able to get the speed that you are getting on your laptop.

Have you by any chance looked at your cpu usage on console using top while testing?
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0 William Warren over 15 years ago

if you are having issues with two different machines i'm not sure it's an astaro issue totally. What is the switch you are using? What is the isp's device? Who is your isp?
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