HTTP access very slow, but good ping

Yann Shukor
Yann Shukor used Ask the Experts™
on
Hi

I am working at a site where the Internet (WEB) access has been slow, real slow, for the past three weeks.

Speedtest.net doesn't complete its tests, and if however it does manage to complete the first two parts, the ping is good ~50ms, but the download speed never gets above 0.9 Mbps

When I ping 8.8.8.8 (or even www.google.com) I get normal responses : 55ms

But everyone is suffering from slow HTTP access.

I rebooted the ISP router (Orange Business Livebox)  then plugged my laptop computer to it and unplugged everyone else : same results.

They have a Windows Server SBS 2008 (up to date), three W7 and two XP

any ideas ?

thanks
yann
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SouljaSr.Net.Eng
Top Expert 2011

Commented:
What is the ISP saying? Circuit good? Any issues with that?

Author

Commented:
I called them up. They have noticed 'instability' on the line
they haven't been to the site yet, maybe tomorrow
Lee IngallsDirector of IT/TS, Quality and Finance

Commented:
Can you plug a laptop or nearby desktop directly into the ISP's router, bypass the server and any internal switching then try the speed test? This will give you an indication where the problems lies. If the problem persist you have that information to provide the circuit provider and/or ISP. Otherwise they can easily point finger to the internal server and infrastructure.
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Dave BaldwinFixer of Problems
Most Valuable Expert 2014

Commented:
'ping' is handled by a very low level function in the network code.  'http' is handled by the web server which is entirely different software.  Maybe the web server is getting overloaded with too many requests or maybe too many errors.

Author

Commented:
Lee Ingalls: That is what I initially tried, results were the same

Dave Baldwin: it's the same what ever website we try;
sometimes I feel like the link comes and goes: like when I download some file it seems to download quickly at first (~700kbps) and then it slows down, halts, picks up again, etc...
Lee IngallsDirector of IT/TS, Quality and Finance

Commented:
You could also try accessing various websites by IP rather than domain name to see if it's dns issue. Since Google's IP address will very depending on the physical location of your browser... just ping google.com, ping yahoo.com, etc
Sr.Net.Eng
Top Expert 2011
Commented:
OP,

I say the issue is the ISP. Let them come out first and resolve the instability issue first. If the symptoms still exist, then we can assume it's something else. Right now, the ISP seems to be the obvious issue.

Author

Commented:
Lee Ingalls: We can get load the web sites, but hey are vary slow to load
Are you sure that this is a DNS issue ?
SouljaSr.Net.Eng
Top Expert 2011

Commented:
Not a DNS issue. See my comment.

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