Question about 3Com OfficeConnect Dual Speed Networking Hub

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Have a 3Com Office Connect Dual Speed Hub 8 that Flashes all lights on and off consistently. After unplugging and restart it does nothing but flash all lights.

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Mine did that and it required a return for repair, 3Com has a great warranty program but you must contact them to schedule the return.
www.3com.com/repair

Posted on Jul 30, 2009

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Posted on Jan 02, 2017

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Superstack 3 3848 reset at default


Hi ! I think this solution should be approached. Because this procedure is the same for switches 3Com and HP A-series with Comware OS.

1. Connect light blue console cable between a computer (serial) and the 3COM switch (RJ45 console port)

2. Open PUTTY or Xshell or HyperTerminal with a serial connection and the following settings (19200, 8, 1, N) If not connected may use 9600 or 115200 bps

Starting......

************************************************************************
* *
* 3COM 2928-SFP Plus BOOTROM, Version 119 *
* *
************************************************************************
Creation Date : Feb 3 2010
CPU L1 Cache : 32KB
CPU Clock Speed : 333MHz
Memory Size : 128MB
Flash Size : 128MB
CPLD Version : 002
PCB Version : Ver.B
Mac Address : 002473959EC8


4. When "Press Ctrl-B to enter Extended Boot menu..." appears, press "CTRL+B"

Press Ctrl-B to enter Extended Boot menu...0
Please input BootRom password:

BOOT MENU

5. Press "7" to "Skip current system configuration"

1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify BootRom password
6. Enter BootRom upgrade menu
7. Skip current system configuration
8. Set BootRom password recovery
9. Set switch startup mode
0. Reboot

Enter your choice(0-9): 7



7. Press "Y" to skip the current config at next reboot


The current setting will run with current configuration file when reboot.
Are you sure you want to skip current configuration file when reboot? Yes or
No (Y/N):Y
Setting...Done!


8. Now Press "0" to reboot the switch


BOOT MENU

1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify BootRom password
6. Enter BootRom upgrade menu
7. Skip current system configuration
8. Set BootRom password recovery
9. Set switch startup mode
0. Reboot

Enter your choice(0-9): 0



9. The switch will reboot, allow it to fully boot this time


Starting......

************************************************************************
* *
* 3COM 2928-SFP Plus BOOTROM, Version 119 *
* *
************************************************************************
Creation Date : Feb 3 2010
CPU L1 Cache : 32KB
CPU Clock Speed : 333MHz
Memory Size : 128MB
Flash Size : 128MB
CPLD Version : 002
PCB Version : Ver.B
Mac Address : 002473959EC8


Press Ctrl-B to enter Extended Boot menu...0
Starting to get the main application file--flash:/S2900-CMW520-R1101P09.bin!...
..........................................................................
The main application file is self-decompressing................................
...............................................................................
.........................Done!
System is starting...
Configuration file is skipped.
User interface aux0 is available.

10. Press "Enter", you will not need a password to login.

Press ENTER to get started.
<3Com Baseline Switch>
#Apr 26 12:00:16:292 2000 3Com Baseline Switch SHELL/4/LOGIN:
Trap 1.3.6.1.4.1.43.45.1.10.2.2.1.1.3.0.1<h3cLogIn>: login from Console VMadmin.co.uk
%Apr 26 12:00:16:461 2000 3Com Baseline Switch SHELL/4/LOGIN: Console login from aux0
<3Com Baseline Switch>

11. Now type "initialize" to delete the configuration file and reboot the switch once more, Press "Y" to accept reboot.

<3Com Baseline Switch>initialize
The startup configuration file will be deleted and the system will be rebooted. Continue? [Y/N]:Y
Please wait...
#Apr 26 12:00:33:537 2000 3Com Baseline Switch DEV/1/REBOOT:
Reboot device by command.

%Apr 26 12:00:33:641 2000 3Com Baseline Switch DEV/4/SYSTEM REBOOT:
System is rebooting now.

12. The switch will full start up again, this time completely factory reset.

Starting......

************************************************************************
* *
* 3COM 2928-SFP Plus BOOTROM, Version 119 *
* *
************************************************************************
Creation Date : Feb 3 2010
CPU L1 Cache : 32KB
CPU Clock Speed : 333MHz
Memory Size : 128MB
Flash Size : 128MB
CPLD Version : 002
PCB Version : Ver.B
Mac Address : 002473959EC8


Press Ctrl-B to enter Extended Boot menu...0
Starting to get the main application file--flash:/S2900-CMW520-R1101P09.bin!...
..........................................................................
The main application file is self-decompressing................................
...............................................................................
.........................Done!
System is starting...
Startup configuration file does not exist.
User interface aux0 is available.

13. Press "Enter", then enter the username "admin" and password "<blank>". Press "Enter" and you will be logged in.

Press ENTER to get started.

Login authentication


Username:admin
Password:
<3Com Baseline Switch>
#Apr 26 12:00:19:811 2000 this article is from VMadmin.co.uk 3Com Baseline Switch SHELL/4/LOGIN:
Trap 1.3.6.1.4.1.43.45.1.10.2.2.1.1.3.0.1<h3cLogIn>:admin login from Console
%Apr 26 12:00:19:981 2000 3Com Baseline Switch SHELL/4/LOGIN: admin login from aux0
<3Com Baseline Switch>
<3Com Baseline Switch>

14. If you type "summary" you will see all the switch details.

Amongst these details are the IP address of the switch. If you have DHCP on your network this switch is connected to it will receive one as in my case below, so I can now configure the rest via a web browser.

If not you can use the "ipsetup" command to set a static management IP and access via a web browser.


<3Com Baseline Switch>summary
Select menu option: Summary
IP Method: DHCP
IP address: 192.168.1.250
Subnet mask: 255.255.255.0
Default gateway: 192.168.1.254

Current boot app is: flash:/S2900-CMW520-R1101P09.bin
Next main boot app is: flash:/s2900-cmw520-r1101p09.bin
Next backup boot app is: NULL

3Com Corporation
3Com Baseline Switch 2928-SFP Plus Software Version 5.20 Release 1101P09
Copyright (c) 2004-2010 3Com Corp. and its licensors. All rights reserved.
3Com Baseline Switch 2928-SFP Plus uptime is 0 week, 0 day, 0 hour, 1 minute

3Com Baseline Switch 2928-SFP Plus
128M bytes DRAM
128M bytes Nand Flash Memory
Config Register points to Nand Flash

Hardware Version is REV.B
CPLD Version is 002
Bootrom Version is 119
[SubSlot 0] 24GE+4SFP Hardware Version is REV.B

<3Com Baseline Switch>



15. Once you can access the web management page for the switch make sure you set a strong password for "admin" and store it in a secure encrypted location for next time.

16. Don't forget to save your new configuration! Otherwise the switch will be at factory defaults if the power goes off!!

Jul 24, 2017 | 3Com SuperStack 3 3848 48-Port Gigabit...

1 Answer

Can i connect a hub to switch which is already have many other connection and also can i connect two or more than 2 systems with that hub


Yes, you can connect a hub to a switch with as many devices as the hub has ports for. You will have a bottleneck at the port the hub links to the switch but if the demands are low then you probably won't notice any significant degradation of speed. Move your printers on to the hub ports to free up switch ports for PCs, servers and router connection.

Oct 18, 2010 | 3Com OfficeConnect TP800 8-Port Ethernet...

1 Answer

How do I connect to 3com officeconnect dual speed switch 8 plus


on a mac u have to go to finder, applications, uttility, network utility and in there under the info tab there is a drop down. in that drop down you have to choose network interface (en1) AND IT GIVES YOU THE IP ADDRESS

Jun 04, 2009 | 3Com OfficeConnect Dual Speed 16 Plus...

1 Answer

Automatic restart of the router


try checking ur modem button or reinstall windows .if problem presists then contact me at afzaalafridi@rocketmail.com

Apr 30, 2009 | 3Com OfficeConnect Wireless 11g Cable/DSL...

1 Answer

Printer flashes code 5 .black ink light flashes & error light on.


  • Unplug the printer cable from the computer.
  • Unistall the printer drivers from Device manager and also unistall the all the printer appications
  • restart the computer
  • try to download drivers from the website
  • after installing drivers and software it will ask you to connect the printer.
  • then you can connect the printer and and try to Print the test page.

Apr 27, 2009 | Office Equipment & Supplies

1 Answer

3com 8 port hub not connecting to 2nd pc


Be sure that when you say its a hub that is indeed a layer 1 device which is just passing the signal and data along to all ports. Be sure to check the cable on the second device. At this point it must a straight cable you use to connect the PCs to the Hub. PCs transmit on pins 1 & 2 and Receive on 3 & 6. Hubs are the opposite. So a crossover will not work. You need PC pin 1 & 2 Tx to Hub Pin 1 & 2 Rx and over to PC pin 3 & 6 Rx to Hub pin 3 and 6 Tx. Tx = transmit and Rx = Receive. Also assign an IP address on each machine that is in the same subnet as each other. Such as PC1 192.168.1.100 mask 255.255.255.0 and PC2 IP address as 192.168.1.101 Subnet Mask 255.255.255.0 This way the 192.168.1 is the same for 8 PCs and the only change is the last number (octet). Also keep the speeds at either 10/100/1000 what ever the product is rated for but always keep the duplex half. Half is good because on a layer 1 hub, everyone is broadcasting at the same time. So you have to have half of all the ports listening at all times.

I hope this helps. My advice is to buy a layer 2 switch.

Mar 18, 2009 | 3Com OfficeConnect TP800 8-Port Ethernet...

1 Answer

Need address for 3com office connect hub


Here is the link tothe Officeconnect Hub8 (PN 3C16700):

http://support.3com.com/infodeli/tools/hubs/off-con/3c16700/manual.a03/dua1670_0aaa04.pdf

Thisdevice is unmanagable meaning you can not define addressing on hub nor can you configure routing on the hub.

Mar 18, 2009 | 3Com HUB OFFICECONNECT Ethernet 10MBPS TPO...

1 Answer

Networking WXP Pro no IE connection or network capability.


Maybe a problem with 10/100 or Full/half duplex settings? Try changing them

Sep 20, 2007 | 3Com OfficeConnect TP800 8-Port Ethernet...

1 Answer

Anyone seen ths before?i


when it flashes it usily means its connected if it dosent work at all you should get a new hub

Aug 30, 2006 | 3Com 3C16985B SWCH 24-PT 10/100 3300XM...

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