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what could cause a port to go from 10Mbps to 1000Mbps?

H

holden j caufield

Diamond Member
I'm not at the location but when I'm in the gui of an HP ProCurve. Yesterday I noticed that port 2 was at 10Mbps then this morning I see it's at 1000Mbps.
 
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If the same device is connected all the time, it could be bad cabling causing the auto-negotiation to be inconsistent.
 
Poor cable causing auto to fail which results in the cable being set to 10/half. Often times this can happen if a device was forced to "something"/"something" because auto fails if the end device is forced to a certain port mode.
 
A good test would be try plugging in a different device (that has no speed issues) into the port and see if it has the same issues. Troubleshoot is an elimination process If a different computer has the same problem try plugging directly into the switch to eliminate cableing issues between the office and network closet.
 
alkemyst said:
seeing is beliveing in this...smart users try things even up to their own AP's

I don't believe in full auto for any end devices I know.
Click to expand...

Resourceful user != smart 😉

They tend to cause problems by not knowing that sometimes things are a little more complicated than they realize.
 
i've seen something similar when a pc with a gig interface is shutdown. The motherboard still pass power to the nic and the pc nic activity light is still on. In this case that pc connection is showing as 10mbps, i forgot if it was half or full, but I think it was half.
When the pc is turned on it will register as full gig.
 
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