20 Most Recent 3Com 3C16985B /REF3COM SSII 24-PORT SWITCH (3C16985BREF) Questions & Answers


If the whole network looses connections when you connect the two switches together, there may be a loop in the network...that is, there could be another path for data to pass between the switches. Typically this is caused if there are two cables connecting the switches, but it can also happen if there is another switch or other network device connected to both switches.

3Com 3C16985B... | Answered on Jul 10, 2014


Typically non flashing port lights means that there is nothing connected to those ports and no communication is happening. data movement and communication fires off the lights.

3Com 3C16985B... | Answered on Nov 04, 2010


your wireles card is not able to use WPA only WEP

3Com 3C16985B... | Answered on Jun 19, 2008


It is possible that the ports are busted already.

3Com 3C16985B... | Answered on May 08, 2008


I'm not sure you can trunk vlans across diffarent manufacturers.

on the cisco you need to set trunk mode on blade/port and set type. if you can set same type on both switches then the trunk should come up

3Com 3C16985B... | Answered on Mar 18, 2008


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

3Com 3C16985B... | Answered on Oct 27, 2007


A very simple solution to r epairing all by yourself is getting help from handbooks, they're very detailed and complete in every way so for me it was my b est source to repair
one of the top sites for this is https://big-manuals.com/

3Com Computers &... | Answered on Dec 07, 2018


Time for a new mouse!

I’m happy to help further over the phone at https://www.6ya.com/expert/joshua_ac64e182ed26f66d

3Com Computers &... | Answered on Feb 08, 2018


I don't know anything about these units, nor do I have time to source any docs for you, but maybe you can try connecting a PC directly to the port your patch panel is connecting the the switch from, you can at least see if that port is working.
My next and only other suggestion is to invest in a "LAN cable tester". In my area, you can find cheap ones for U$20.
The tester will allow you to check connectivity between any two ports, and allows you to test both patch links and individual CAT5/6 cables.
Good luck!

3Com Computers &... | Answered on Nov 22, 2017


notify the police dept / person handling the case and let them know about the face book information

3Com Computers &... | Answered on Nov 08, 2017


Here is the standard pinout for a console port on a router to seriel port for computers
21473952-p02ntbe4zwfh4zdoomaey2km-2-0.png

3Com Computers &... | Answered on Oct 10, 2017

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