cisco wireless router cuts out

by admin on February 12, 2010

What exactly is the significance of a MAC id? (DO NOT CUT AND PASTE FROM THE INTERNET PLEASE)?

I’m curious….I’m not familiar exactly with mac ids.

There is another computer of a roommate that I was using to see what the problem was at first with our wireless broadcast SSID and why she couldn’t connect to our network (before I reset the router)….Our SSID randomly disappeared.

Used her Windows machine. Shell – ipconfig. Tried release/renew. It told me Media Disconnect. Doesn’t that have to do with the MAC address? If I reset the router, do you think she’ll have the same problem?

If before I reset it, I disconnected someone from the network through the wireless network config page – will they be filtered out completely? Even after I reset it?

Its an old WRT54GC Linksys – Cisco. If I reset it, is EVERYTHING going to go back to default? Does anything stay the same?

Mac ID is like a social security number for network devices. no 2 network devices have the same Mac ID.

and ALL network devices have a Mac ID, that includes and not limited to ALL Bluetooth devices. all network cards (wired or wireless, so your computer may have 2 Mac ID, one for wired LAN card and one for wireless LAN card) all routers etc.

You can find out your Mac id (address) also know as “Physical address” listed in DOS by go to Dos prompt and type “ipconfig/all” and hit enter.

MAC ID (aka Mac address/physical address) is assigned by the manufacture of the device and it is not changeable. And it is ALWAYS there REGARDLESS you are connected to a network or not. Another word, if you don’t see a “Physical address listed” when you do a “Ipconfig/all” in command prompt. Your network card is either damaged, disabled or not plug in correctly or driver is deleted.

SSID is very different, SSID is like call name for a radio station. Which can be changed by the user. SSID can be hidden to hide your wireless network SSID exists only for the wireless router. It exists to help users find their “radio station” (their router) easier when there are more than 2 routers around. So I can call my router Snoppy and my neighbor can call his Garfield.

It is recommended to have your SSID hidden once you have all of your wireless devices setup and running.

One reason why you may have problems with connection is your security setting or “Mac address filter” If you have somehow select a list in your router that only allow certain computer with specific Mac ID to use your internet access. That is called “Mac address filtering”. In this case, you will need to enter all the “Wireless Mac ID” into your router’s database’s allow listing. Mac ID should look like “00-45-4A-3F-5D-B6”

For security settings, you will need to consult with your router manual as all of them are different.

Installing new Cisco network switches – High Speed DSL ethernet network wiring


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