Question about Cisco Aironet 1131AG 802.11a, 802.11g/b (746320933474) Wireless Access Point

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Erasing the flash....

And I need it back! When I console into the 1131AG I get the "ap:" but I'm unable to go anywhere else. I basically have the bootloader and that's it! If I can salvage this that would be great! Thanks, Tae

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Re: Erasing the flash....

You will need to upload the IOS back to the AP. First, you will need to get the IOS from cisco/web. Cisco may require a login, but I don't remember for sure. Next you will need to setup a tftp server on your pc (where you have downloaded the IOS image). Then you need to get the AP/tftp server talking via IP/ethernet cables. Then run bootloader tftp commands to upload the new IOS and reload. Check the "Using a TFTP Server to Return to a Previous Release " in this cisco doc:

Posted on Nov 08, 2007

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Re: Erasing the flash....

Toast...looks like you killed your entire IOS will have to be reloaded to the flash...

Posted on Aug 27, 2007

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Hi I have a AP 1131A K9. I was trying to reset the password of that. At the time of doing that, the boot file got erased. Now after booting up, it automatically comes into AP: mode. And it is showing...

On console you will see..AP: Step 1.Type format flash: on the AP and then hit enter Step 2. Enter the set command to assign an IP address, subnet mask, and default gateway tothe access point. Your entries should look like this example: bridge: set IP_ADDR set NETMASK set DEFAULT_ROUTER system you are using must have tftpserver recomend by Cisco.You can download it from link givenbelow: Also load the IOS file in the tftp server.Before step3.Step 3.Enter the tftp_init command to prepare the access point for TFTPbridge:tftp_initStep 4. Enter the tar command to load and inflate the new image from your TFTPserver. The command must include this information: .the -xtract option, which inflates theimage when it is loaded .the IP address of your TFTP server .the directory on the TFTPserver that contains the image .the name of the image .the destination for the image (theaccess point Flash) Your entry might look like this example: bridge: tar -xtracttftp:// flash:In the meantime if you needassistance please feel free to contact me at any time.

Aug 01, 2011 | Cisco Aironet 1131AG 802.11a, 802.11g/b...

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How to reset the 1131 Cisco AP manually.

In order to get your router back to the original settings, you must push in the reset button (usually on the back of the router) for somewhere between 10 and 30 seconds depending on the router. You may need a pin or something small to push in the button, because it can be recessed. Once you have reset the router, the username and password will be changed to the defaults, admin and password, respectively. One thing you must remember is that resetting the router will change all of the router settings back to the factory settings. This means you will lose all of the changes you made since you got the router. Make sure to write down any things you've changed, so you can change them back after the reset. Also, I recommend updating to the latest firmware after the reset.
If you need more help post back! Thumbs and testimonial are welcome!

There a great article at General Router Setup.
If you need more help post back!
Thumbs and testimonial are welcome!

Jan 24, 2011 | Cisco Aironet 1131AG 802.11a, 802.11g/b...

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Radio0 and radio1 "not installed" problem on Cisco 1131AG

check that you have enough power on the PoE to power up both radios. Switch one off for clarity and see if 1 powers up. Also check the log of the AP and the PoE switch as it will report the power related issue if it is a pre- PoE approved switch

Mar 12, 2009 | Cisco Aironet 1131AG 802.11a, 802.11g/b...

1 Answer

Can't get an IP address over time.

Ok I have guessed a couple of things. Here goes.
the version of software 12.4 (3g) is very old
I think that you have DHCP configured on the AP

the cisco site lists loads of issues regarding DHCP and memory leaks in numerous guises with not only your IOS version but newer versions too.

the reason why I have homed in on this is that you say that the unit works for about a week then essentially stops until you reboot the AP. (I guess that you do this by power cycling not by issuing the reload command) in the short term you have fixed the problem.

I would suggest that you upgrade the IOS to something newer. the current version listed is 12.4(22)T if it's of any help.

lastly as you know when the system actually goes wrong. You are able to issue the reload command with additional settings so it could reload @ X date and time if NTP is configured or you can specify a time duration in minutes if preferred.

I can't think of anything else I afraid.

Nov 04, 2008 | Cisco Aironet 1131AG 802.11a, 802.11g/b...

1 Answer

Configure cisco aironet wifi

if ur using IOS autonomous AP, then u'll need to configure the bvi interface to get an ip address and then enable the interface. once it has an ip, u'll need to configure the ssid, vlan, etc - choices include doing so with the CLI or web page GUI. U'll need to enable the built-in web server then u can access it via the web interface to setup the ssid, any vlans, radius, etc. good luck.

Jan 17, 2008 | Cisco Aironet 1131AG 802.11a, 802.11g/b...

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AP Mode Problems

Probably you have to learn that there are various people looking for an access of the internet through your facilities. Anyway, inorder to solve your problem these are the following recommendation I made just for you. Hope this will be helpful.

1.) How do I reset the EOC-3220 / EOC-3220 EXT / EOC-3220+ back to factory default settings? An RS-232 null modem serial cable is required for this procedure.
(where to buy it :

1. Connect the EOC-3220 to your computer with a null modem serial cable.

2. Start a HyperTerminal session: Click Start and then select Programs -> Accessories -> Communications -> HyperTerminal.

3. After the HyperTerminal window appears:
a. Give this new connection a name. Ex: EOC-3220.
b. Select correct COM port. Ex:COM1.
c. Set baud rate as "38400", data bits "8", parity "none", stop bits "1", and flow control as "None". Then press “OK” to bring up the HyperTerminal window.

4. Wait until the "#" is displayed in the HyperTerminal window.

5. Type "flash reset", then hit enter.

6. Type "reboot", then hit enter. After the device reboots, all settings will be at factory default.

Phase II

1.) Since that you already reseted the AP you need to use the default IP which is user: admin password: admin

2.) Make it sure you need to use different IP such as and the subnet:

3.) The idea of configuration in come from your own desire which was no body can no longer try to match your network IP so that there will be no body access your AP anymore without your knowledge.

4.) You need to make you SSID invisible to everyone inorder no body no longer able to reach your SSID by setting up basic setting which is transparent to everyone.

5) And lastly change the default user and password of your AP.

Good Luck

Nov 24, 2007 | EnGenius EOC-3220 (EOC3220)

3 Answers

My PC is not detecting the wireless Access Point

is your wireless adapter still ok? or is your wireless PC switch on? Try to check and then let me know.

Oct 11, 2007 | Cisco Aironet 1131AG 802.11a, 802.11g/b...

4 Answers

Cicso 1131ag Drops off

How are attached / verified by the LAN? Do you have a RADIUS server for the certificates?

Oct 27, 2006 | Cisco Aironet 1131AG 802.11a, 802.11g/b...

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