ADSL problem high sync speed poor throughput
Hi EE,
I have a client which recently moved offices and their ADSL line throughput seems very poor. We get 0.6 mbps download speed and 0.4 upload. The sync speed is fine at 6mbps, we tried changing ISP however no problems found with the line. The router has been changed and we had an ISP engineer check the line twice and no faults reported.
What else could it be? Any ideas? Thanks
I have a client which recently moved offices and their ADSL line throughput seems very poor. We get 0.6 mbps download speed and 0.4 upload. The sync speed is fine at 6mbps, we tried changing ISP however no problems found with the line. The router has been changed and we had an ISP engineer check the line twice and no faults reported.
What else could it be? Any ideas? Thanks
ASKER
TCP/Web100 Network Diagnostic Tool v5.5.4a
click START to begin
** Starting test 1 of 1 **
Connected to: netspeed1.stanford.edu -- Using IPv4 address
Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
checking for firewalls . . . . . . . . . . . . . . . . . . . Done
running 10s outbound test (client-to-server [C2S]) . . . . . 624.0kb/s
running 10s inbound test (server-to-client [S2C]) . . . . . . 1.77Mb/s
Your PC is connected to a Cable/DSL modem
Information: Other network traffic is congesting the link
[S2C]: Packet queuing detected
click START to begin
** Starting test 1 of 1 **
Connected to: netspeed1.stanford.edu -- Using IPv4 address
Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
checking for firewalls . . . . . . . . . . . . . . . . . . . Done
running 10s outbound test (client-to-server [C2S]) . . . . . 624.0kb/s
running 10s inbound test (server-to-client [S2C]) . . . . . . 1.77Mb/s
Your PC is connected to a Cable/DSL modem
Information: Other network traffic is congesting the link
[S2C]: Packet queuing detected
ASKER
For some reason I am unable to copy as text so attached screen shots
SOLUTION
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ASKER
Hi pgm554, I have been running some more tests today and found that on certain speed tests such as speedtest.net and broadbandspeedchecker the speed is capped at 0.6 but on others I manage to achieve 4mbps download. I am not sure why I can see such difference from using different tool as these sites work fine if I run them anywhere else. Just to be certain I removed QOS but it made no difference.
I've seen,depending upon the time of day or after dusk,ADSL speeds go bad.
The dirty little secret that AT&T neglects to tell you is that after dusk ,they turn up the frequency of the T1's and the crosstalk affects the DSL folks,making for a very poor experience.
As for your issues,they could be using bandwidth shaping and your mileage may vary accordingly.
That the reason DSL is often slower than a business T.
The dirty little secret that AT&T neglects to tell you is that after dusk ,they turn up the frequency of the T1's and the crosstalk affects the DSL folks,making for a very poor experience.
As for your issues,they could be using bandwidth shaping and your mileage may vary accordingly.
That the reason DSL is often slower than a business T.
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ASKER
Problem was with a a linux firewall which i was not aware of, there was QOS applied on certain types of traffic.
Thanks and apologies for delay with replying.
Thanks and apologies for delay with replying.
http://netspeed1.stanford.edu:7123/
ISP engineers are as good as the company that sends them out,and with that being said,if it's from the provider,they don't know their butt from their elbow.
THEY LIE!