Lights flashing on hub

  • Thread starter Thread starter M Jones
  • Start date Start date
M

M Jones

Hi all,

I have a couple of machines connected to an 8 port hub. Yesterday
everything was working fine. Unfortunately today none of my machines can
see eachother. What does it mean if all the lights on the hub are flashing
constantly? I don't have the manual for the hub, so I can't identify what
the problem may be.

Thanks.
 
"M Jones" said:
Hi all,

I have a couple of machines connected to an 8 port hub. Yesterday
everything was working fine. Unfortunately today none of my machines can
see eachother. What does it mean if all the lights on the hub are flashing
constantly? I don't have the manual for the hub, so I can't identify what
the problem may be.

Thanks.
Click to expand...

It could mean that:

1. The hub or its power supply has gone bad.

2. One or more computers are flooding the hub with packets, possibly
due to a virus or worm.

3. One or more of the computers' network cards are configured to use
full duplex. A hub requires half duplex.

Unplug all of the computers from the hub and add them back one by one
to see if a particular computer is causing the problem.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional - Windows Networking
http://mvp.support.microsoft.com

Steve Winograd's Networking FAQ
http://www.bcmaven.com/networking/faq.htm
 
Steve Winograd said:
It could mean that:

1. The hub or its power supply has gone bad.

2. One or more computers are flooding the hub with packets, possibly
due to a virus or worm.

3. One or more of the computers' network cards are configured to use
full duplex. A hub requires half duplex.

Unplug all of the computers from the hub and add them back one by one
to see if a particular computer is causing the problem.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional - Windows Networking
http://mvp.support.microsoft.com

Steve Winograd's Networking FAQ
http://www.bcmaven.com/networking/faq.htm
Click to expand...


I've unplugged everything from the hub and turned off the power. I've left
it off for 5 mins and turned the power back on. All the lights are still
flashing!! Does this mean I need to buy a new hub?
 
that is what it would say to me.... :<
M Jones said:
I've unplugged everything from the hub and turned off the power. I've left
it off for 5 mins and turned the power back on. All the lights are still
flashing!! Does this mean I need to buy a new hub?
Click to expand...
 
I've unplugged everything from the hub and turned off the power.
I've left it off for 5 mins and turned the power back on. All the
lights are still flashing!! Does this mean I need to buy a new
hub?
Click to expand...

By "turned off power", I assume you unplugged it from the wall.
Doesn't sound good...
But before you throw it away, try connecting to the manufacturer's web
page and see if there is a manual or FAQ posted there for you to
reference.

HTH,
John
 
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