Please whitelist cPanel in your adblocker so that you’re able to see our version release promotions, thanks!

The Community Forums

Interact with an entire community of cPanel & WHM users!

cPanel Server - Slow Network Speed

Discussion in 'General Discussion' started by fidividi, May 24, 2014.

  1. fidividi

    fidividi Active Member

    Joined:
    Feb 15, 2013
    Messages:
    43
    Likes Received:
    0
    Trophy Points:
    6
    cPanel Access Level:
    Root Administrator
    Hello,

    We are running below machine:
    CLOUDLINUX 6.5 x86_64 standard – HOSTNAME WHM 11.42.1 (build 16)

    Our datacenter is Hetzner.

    Throughout all the tests we performed, we thought the issue is with datacenter. So we reported the low speed to Hetzner, they claimed there's no limit, so they asked us to take our machine down in their rescue mode linux environment, and we provided them couple of links that we were experiencing extremely low speed (max: 3~5mbit/s), they tested the speed on our server, with no changes to the network configuration, but just in different environment than cPanel, and below is the result provided to us:


    As I mentioned above, we are running cPanel with CloudLinux. I am not aware of any limitation/configuration where we can have such control over cPanel download/upload network speed, and same applied for CloudLinux.

    What could the issue be?

    We have noticed the speed can not max out more than 5mbit/second. Slow enough that account transfers never finish...

    I appreciate any help!

    Thank you.
     
  2. JayFromEpic

    JayFromEpic Well-Known Member

    Joined:
    Apr 2, 2011
    Messages:
    204
    Likes Received:
    0
    Trophy Points:
    66
    Location:
    Scottsdale, AZ
    cPanel Access Level:
    Root Administrator
    The slow connection speed could be caused from a dozen of different causes. The server would need to be reviewed by a System Engineer capable of diagnosing network device/driver errors.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  3. dalem

    dalem Well-Known Member
    PartnerNOC

    Joined:
    Oct 24, 2003
    Messages:
    2,664
    Likes Received:
    69
    Trophy Points:
    203
    Location:
    SLC
    cPanel Access Level:
    DataCenter Provider
    your testing is not consistent
    you comparing a local download to remote

    I get the same speeds from Linode 22.0M/s
    From our servers in Las Vegas
    so I don't think you have speed issue
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  4. fidividi

    fidividi Active Member

    Joined:
    Feb 15, 2013
    Messages:
    43
    Likes Received:
    0
    Trophy Points:
    6
    cPanel Access Level:
    Root Administrator

    I don't think you read my post in detail.

    My issue is, basically in rescue mode, our server downloaded from Linode on average 2.94 MB/s, in cPanel/CloudLinux operating system, it can only reach 3~4mb/s, for the same exact file, almost within the same time-frame. There is almost 7~8 times difference...

    This obviously tells me something is wrong with the setup, as our machine was able to download faster, much faster, while not in cPanel/CloudLinux environment.
     
  5. dalem

    dalem Well-Known Member
    PartnerNOC

    Joined:
    Oct 24, 2003
    Messages:
    2,664
    Likes Received:
    69
    Trophy Points:
    203
    Location:
    SLC
    cPanel Access Level:
    DataCenter Provider
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  6. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    43,711
    Likes Received:
    1,794
    Trophy Points:
    363
    cPanel Access Level:
    Root Administrator
    Hello :)

    Yes, I suggest making sure there are no firewall rules that could be limiting traffic. You are also welcome to open a support ticket so we can take a closer look and rule out any involvement with the cPanel/WHM software.

    Thank you.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
Loading...

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice