Question about 3Com Baseline Switch 2024 - Switch - 24 ports - EN, Fast EN - 10Base-T, 100Base-TX - 1U (3C16471B-US)

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3Com Baseline Switch 2024 - Switch - 24 ports duplex light blink continusly

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Is it hsappening with all the 24 ports or with some ports ?

Might be an indiacation towards the duplex mismatch.
are you getting CRC errors on the interfaces ?

Posted on Dec 06, 2010

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Posted on Jan 02, 2017

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3com Switch Intermittently Losing Connection.


this could be a problem with the second switch unit. what happens if you connect a pc to this cable, is that intermittent, if so, that is your problem. try fault finding with a LAN cable tester to see if there's any issue with the link cable.

Jul 16, 2013 | 3Com Baseline Switch 2024 24-Port...

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Firmware update for 3Com 2952


Don't let the switch name fool you, HP calls it the HP 1910.
HP 1910 48G Switch Fixed Port Web Managed Ethernet Switches HP JE009A ABA
Technical Notes:
"The HP 1910-48G Switch (JE009A) was formerly sold as the 3Com Baseline Plus 2952 (3CRBSG5293) and may ship with this product labeling.SFP ports and copper ports work simultaneously, independent of each other to give a total of 52 Gigabit-capable ports."

Firmware download from HP:
My Networking HP Official Site

Jan 14, 2013 | 3Com Baseline Plus 2952 52 Port Gigabit...

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I work at a school and we are trying to connect 2 HP 3com Baseline switch 3952 together. however when I plug in my Cisco SFP modules into both the switches, neither of the ports light up and establish a...


1.what type of fiber is:SM (single mode) or MM (multi mode)?
2.what type of sfp? 1550 or 1310 if is SM, how many conectors and what type of conectors
3.in 3com usualy u dont need to make a port anouncemant as u need in cisco so if the sfp are ok, i mean if they are pairs and the fiber is same type should work, second problem : sometime the cisco sfp(when is not original from cisco) got problem in other brands hapend to me whit zyxel sw,

so give me more data and i will help you

thanks

Sep 22, 2011 | 3Com Baseline Plus 2952 52 Port Gigabit...

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I forgot my admin password on my 3com baseline switch 2226-sfp. i can't remember. Can you please help mo to reset my baseline switch to reset the password only. Thanks jenry


If it's the Power Plus (3C16475BS) model, there should be a reset button inside a small hole on the back. "10 - Recovery Button" Inserting a paperclip or similar to reset. If it's not the Power Plus model and is in fact (3C16475A), this is an unmanaged switch, with no administrative capabilities. You don't need a password.
http://www.3com.com/products/en_US/detail.jsp?tab=features&pathtype=purchase&sku=3C16475BS

Feb 25, 2011 | 3Com 3C16475A Baseline Switch 2226...

1 Answer

How do i Reset or break in to get reset my password on 3Com 2948 Baseline Switch 48Port SFP Plus


The resetting of the password requires the installation of a console cable to the console port.

Be sure the terminal emulator program is set to VT-100 management using compatible, 38400 baud rate, no parity, 8 data bits and Console connection one stop bit.

Use the included cable, or be sure that the pin-out complies with a standard null-modem cable

Once the cable is connected, reboot the switch. Type a Ctrl/C until you enter the failsafe mode. This will be denoted with the prompt: “CFE>”
At the prompt execute the following commands:

CFE> passwrd
CFE> reset -sysreset

At this point the password has been reset.

Jan 20, 2010 | 3Com Baseline Switch 2948-SFP Plus 48-Port...

1 Answer

Link and activity lights on 3Com Switch ports without connection


Do the ports work when the cables are connect?  I did some re-search and this seems to be an ongoing issue with 3com switches.  It should not effect the use of the switch

Oct 09, 2007 | 3Com 3C16985B /REF3COM SSII 24-PORT SWITCH...

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