• This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn more.

Solved Unstable Broadcom/CAT5/Ethernet network speed. Is the driver buggy?


cognus

New Member
Member
Texas

Posts
128
#1
Friends on my Compaq DC7600 with a typical Broadcom ethernet controller, running Windows 8 Enterprise RTM 32-bit, the network performance is unreliable. With my windows 7 hdd in and running its flawless. If I still a USB wireless device in and run it to the same access point as is hosting the cabled connection, it is fast/furious. Sometimes the network link via CAT5 will start off with a blaze but then quickly drop to a crawl inside of 1sec.
Anyone seen this?

On ordinary internet traffic, flipping through web pages, it seems "normal" but the halt/herky/jerky disease triggers on any long-download item [such as a speedtest or a file download]

clues? Should I replace the default windows 8-installed driver with something else?
 

My Computer

System One

  • OS
    Win 8.1, Win 10P, Win7-all, RIP XPP, 'droid 2.2, 2.3,4.x, 5..IOS,
    Computer type
    PC/Desktop
    System Manufacturer/Model
    many: E5440, 430 G1, E45, G4-1117DX, X120E, DC7600, X83VB-X2, NC10, Droids, Galaxy,
    CPU
    too many
    Motherboard
    ditto
    Memory
    ditto
    Graphics Card(s)
    ditto
    Internet Speed
    30mbps

whest

New Member
Member
Posts
122
#2
Have you tried shutting everything down - power off - leave for a few minutes and then power up.
 

My Computer

System One

  • OS
    Windows 8 64bit Pro
    Computer type
    Laptop
    System Manufacturer/Model
    Asus Notebook N53SV Series
    CPU
    Intel(R) Core(TM)i7-2630 CPU @ 2.0GHz /turbo 2.9Hz
    Motherboard
    Intel® HM65 Express Chipset
    Memory
    4GB
    Graphics Card(s)
    GT540M
    Sound Card
    realtek
    Screen Resolution
    1366/768
    Hard Drives
    Seagate 500gb 5400
    Keyboard
    microsoft wireless keyboard 3000 v2
    Mouse
    microsoft wieless mouse 5000
    Internet Speed
    13/16mbs
    Browser
    IE Firefox Chrome
    Antivirus
    Windows Defender

cognus

New Member
Member
Texas

Posts
128
#3
I'd like some smarter folks than I to kick in an opinion or two.
since this problem, I pulled the drive and have been using ole' faithful Windows 7 which works just great. [also have terrible graphics/display/catalyst driver issues in 8]
anyway, got a new router for several reasons, set it up, works great on my Win7 thinkpad, hooked up the HP desktop again, plugged in and it worked terrific under Windows 7. did tests, big downloads, etc everything swell. Unhooked the win7 hdd, plugged up the win8 hdd, fired it up. When I first logged in, the network came alive and it stayed up for about 2 minutes or so, then went erratic, then lost Internet leg. Just to make sure it wasn't 3rd party security I disabled AVAST altogether. could not get the Internet leg back up.

I will try another driver on the nic and see if anything changes, but it sure smells like an error owing to the driver. I did not manually tweak anything as to the NIC's parameters.

EDIT: another question on the same: in Windows 8, perhaps for security reasons [?]: is the network link dormant until credentials are authenticated? is that the 'norm'? that is what I saw...
 

My Computer

System One

  • OS
    Win 8.1, Win 10P, Win7-all, RIP XPP, 'droid 2.2, 2.3,4.x, 5..IOS,
    Computer type
    PC/Desktop
    System Manufacturer/Model
    many: E5440, 430 G1, E45, G4-1117DX, X120E, DC7600, X83VB-X2, NC10, Droids, Galaxy,
    CPU
    too many
    Motherboard
    ditto
    Memory
    ditto
    Graphics Card(s)
    ditto
    Internet Speed
    30mbps

cognus

New Member
Member
Texas

Posts
128
#4
Broadcom NetXtreme NIC it turns out has a history of bad interaction of their 'FLOW CONTROL' feature in various windows iterations. Turned off [disabled] Flow Control and solved the problem. No more halts on larger downloads. No erratic net performance
 

My Computer

System One

  • OS
    Win 8.1, Win 10P, Win7-all, RIP XPP, 'droid 2.2, 2.3,4.x, 5..IOS,
    Computer type
    PC/Desktop
    System Manufacturer/Model
    many: E5440, 430 G1, E45, G4-1117DX, X120E, DC7600, X83VB-X2, NC10, Droids, Galaxy,
    CPU
    too many
    Motherboard
    ditto
    Memory
    ditto
    Graphics Card(s)
    ditto
    Internet Speed
    30mbps

Users Who Are Viewing This Thread (Users: 0, Guests: 1)