Help Enabling 802.11b Support

Can anyone help? All I want to do is enable 802.11b support on my Cisco 877W. My 802.11g clients can see and attach to it no problems. My 802.11b clients cannot see it at all. I have tried all sorts but nothing has helped. My config looks like this:
interface Dot11Radio0
no ip address
encryption key 1 size 128bit 7 BC48CE99C4E9B683819990D3C1A5 transmit-key
encryption mode wep mandatory
ssid *****
authentication open
speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0
48.0 54.0
station-role root
no dot11 extension aironet
bridge-group 1
bridge-group 1 spanning-disabled
What do I need to add to make it visible and available to 802.11b clients?
Many Thanks,
Matt

I'd start by defaulting the AP back to factory default, no WEP, no authentication.
Check to see if the 802.11b clients can connect.
If all the 802.11b clients are running the same software, check to see that they are up-to-date drivers & client software. If you're using the MS client software (Zero Wireless Config) try a client using the vendor's client software instead.
If the clients are not eve associating, look at the basic parameters: things like preamble length (legacy default is "long" which is a one meg data rate)
If you can get the 802.11b client to connect whith all open parameters, then add WEP. Be advised that some clients need the WEP entered as HEX, not ASCII.
For example ASCII "ABCD" would be "41 42 43 44" in hex ... make sure you're using the same system. IF youre using something like "12345abcde" that can be a valid (but incorrect) hex string when ou really intend for it to be ASCII.
Also note that leading or training spaces (ASCII 20) are valid characters. Make sure you do not have leading or training spaces in your WEP (unless you really want them there, in whch case, make sure they're there)
Make sure the Ethernet format is correct: use the Web GUI to set up. Check the parameters on the "Interfaces" page and do not (at least initially) use the "Best throughput" or "Best Range" settings, leave it at "Default Settings"
If your 802.11b clients are PDAs, bar-code scanners, or other hand-held devices, check that they are at default settings for the standard 802.11b protocols; some use proprietary protocols for better performance or security.
That's about it for me ... let us know if any of that changes (works / doesn't work, but acting differently / doesn't work, looks the same).
Good Luck
Scott

Similar Messages

Can I enable 802.11b/g on individual radios instead of globally?

I am deploying 400 new APs. There is an existing wireless network. I need to turn up some of the radios before I turn up the rest. Right now I have 802.11b/g network turned off globally across all controllers. What I want to know is can I enable 802.11b/g radios selectively on individual APs or does it have to be done globally across the controller?
Thanks.

Hi Friend,
The only workaround is globally enable for all APs and manually admin down for respective APs for b/g radio. I agree its a tough job when you have 400 APs but if you can run some script it will be a matter of seconds.
And if you have WCS you can use AP template for that purpose which again will take less time than manual work.
Regards,
Ankur

Disabling 802.11b, what issues to coverage?

Hi All
I want to soon disable 802.11b support on our AP 1231 with B/G cards. I want this because I don't like to have 802.11b clients connecting and taking down the speed.
The question now is, how would our signal coverage change if I put 'power local cck 1' on the device?
Or I would only allow theese rates:
6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0 which are only supported by 802.11g cards.
Would that change the signal range a lot? Or do you have better ideas to disable 802.11b support?
Thanks,
Patrick

Hi Patrick,
Here is some info related to disabling 802.11b;
Q. How can I set the AP so that only IEEE 802.11g clients can connect? I do not want the IEEE 802.11b clients to connect and slow down the wireless network. There is a second, parallel 802.11b network for unsecured clients.
A. In order for the AP to receive only 802.11g clients, complete these steps in the GUI:
Go to the Network Interfaces section and click Radio 0-802.11G.
Click the Settings tab at the top of the Radio 0-802.11G window.
Choose Disable for these data rates:
1.0
2.0
5.5
11.0
Choose Require for all the other data rates. These other data rates are:
6.0
9.0
12.0
18.0
24.0
36.0
48.0
54.0
Click Apply at the bottom of the window.
From this good doc;
http://www.cisco.com/en/US/products/hw/wireless/ps430/products_qanda_item09186a008009483e.shtml
As for coverage; A fundamental rule is that as data rates increase, range decreases. 802.11b uses DSSS to support data rates of 11, 5.5, 2, and 1 Mbps each, with correspondingly longer ranges as the data rates decrease. 802.11g uses OFDM to support data rates of 54, 48, 36, 24, 18, 12, 9, and 6 Mbps each, with correspondingly longer ranges as the data rates decrease. The higher data rates supported by 802.11g result in shorter range than the range supported by the maximum 802.11b data rate. Still, OFDM is a more efficient means of transmission than is DSSS, meaning that at a given range, higher OFDM-based data rates will be supported than DSSS-based data rates (all other things being held constant). That being said your range difference should not be too drastic
From this superior Cisco doc (Have a look at Table 4 for some good Range approximations);
http://www.cisco.com/en/US/products/hw/wireless/ps430/products_white_paper09186a00801d61a3.shtml
Hope this helps!
Rob

Channel utilization - show ap auto-rf 802.11b

Question on the command "show ap auto-rf 802.11b <ap_name>". What is the period of time that is measured for:
    Channel Utilization.......................... 64 %
I am seeing high channel util. on certain AP's, but standing directly below the AP w/ spectrum analyzer, I see much lower util.%:
Basically, wondering if the measurement is from the exact time I launch the command, or if it's over say a 10 sec. period?
WLCCA shows highest Rx neighbor @ -71
complete output of the command:
(WiSM-slot8-1) >show ap auto-rf 802.11b ap-bhs-400-2
Number Of Slots.................................. 2
AP Name.......................................... ap-bhs-400-2
MAC Address...................................... 50:57:a8:d6:7d:6d
Slot ID........................................ 0
Radio Type..................................... RADIO_TYPE_80211b/g
Sub-band Type.................................. All
Noise Information
    Noise Profile................................ PASSED
    Channel 1.................................... -88 dBm
    Channel 2.................................... -89 dBm
    Channel 3.................................... -91 dBm
    Channel 4.................................... -94 dBm
    Channel 5.................................... -93 dBm
    Channel 6.................................... -93 dBm
    Channel 7.................................... -90 dBm
    Channel 8.................................... -87 dBm
    Channel 9.................................... -94 dBm
    Channel 10................................... -92 dBm
    Channel 11................................... -92 dBm
Interference Information
    Interference Profile......................... PASSED
    Channel 1.................................... -128 dBm @ 0 % busy
    Channel 2.................................... -128 dBm @ 0 % busy
    Channel 3.................................... -128 dBm @ 0 % busy
    Channel 4.................................... -128 dBm @ 0 % busy
    Channel 5.................................... -128 dBm @ 0 % busy
    Channel 6.................................... -128 dBm @ 0 % busy
    Channel 7.................................... -128 dBm @ 0 % busy
    Channel 8.................................... -128 dBm @ 0 % busy
    Channel 9.................................... -128 dBm @ 0 % busy
    Channel 10................................... -128 dBm @ 0 % busy
    Channel 11................................... -128 dBm @ 0 % busy
Load Information
    Load Profile................................. PASSED
    Receive Utilization.......................... 0 %
    Transmit Utilization......................... 1 %
    Channel Utilization.......................... 65 %
    Attached Clients............................. 0 clients
Coverage Information
    Coverage Profile............................. PASSED
    Failed Clients............................... 0 clients
Client Signal Strengths
    RSSI -100 dbm................................ 0 clients
    RSSI -92 dbm................................ 0 clients
    RSSI -84 dbm................................ 0 clients
    RSSI -76 dbm................................ 0 clients
    RSSI -68 dbm................................ 0 clients
    RSSI -60 dbm................................ 0 clients
    RSSI -52 dbm................................ 0 clients
Client Signal To Noise Ratios
    SNR    0 dB.................................. 0 clients
    SNR    5 dB.................................. 0 clients
    SNR   10 dB.................................. 0 clients
    SNR   15 dB.................................. 0 clients
    SNR   20 dB.................................. 0 clients
    SNR   25 dB.................................. 0 clients
    SNR   30 dB.................................. 0 clients
    SNR   35 dB.................................. 0 clients
    SNR   40 dB.................................. 0 clients
    SNR   45 dB.................................. 0 clients
Nearby APs
    AP 00:0f:90:5e:2a:d0 slot 0.................. -73 dBm on 11 (10.252.1.2)
    AP 00:13:5f:56:e0:90 slot 0.................. -88 dBm on 11 (10.252.1.4)
    AP 00:13:5f:57:00:70 slot 0.................. -79 dBm on   1 (10.252.1.4)
    AP 00:16:9c:91:64:e0 slot 0.................. -43 dBm on 11 (10.252.1.2)
    AP 00:17:0f:db:2e:70 slot 0.................. -87 dBm on   1 (10.252.1.2)
    AP 00:17:df:35:43:90 slot 0.................. -90 dBm on   1 (10.252.1.10)
    AP 00:21:d8:d5:a2:40 slot 0.................. -91 dBm on   1 (10.252.1.12)
    AP 00:21:d8:d5:a8:90 slot 0.................. -91 dBm on   1 (10.252.1.12)
    AP 00:21:d8:d5:a8:c0 slot 0.................. -91 dBm on 11 (10.252.1.12)
    AP 00:21:d8:d5:ac:80 slot 0.................. -92 dBm on   1 (10.252.1.12)
    AP a4:56:30:5d:b0:a0 slot 0.................. -89 dBm on 11 (10.252.1.12)
    AP b4:e9:b0:b3:c8:70 slot 0.................. -91 dBm on 11 (10.252.1.18)
Radar Information
Channel Assignment Information
    Current Channel Average Energy............... -76 dBm
    Previous Channel Average Energy.............. -57 dBm
    Channel Change Count......................... 3
    Last Channel Change Time..................... Wed Jul 17 22:27:37 2013
    Recommended Best Channel..................... 1
RF Parameter Recommendations
    Power Level.................................. 1
    RTS/CTS Threshold............................ 2347
    Fragmentation Threshold...................... 2346
    Antenna Pattern.............................. 0
Persistent Interference Devices
Class Type                 Channel DC (%%) RSSI (dBm) Last Update Time
All third party trademarks are the property of their respective owners.
These are lined down a hallway (about 50' from ea. other). Looks to me like they are set for too high Tx and crowding chan. 1. I'll figure out the reason for that.
show advanced 802.11b txpower:
ap-bhs-400-1                     *1         *1/7 (22 dBm) [22/19/16/13/10/7/4/4]
ap-bhs-400-2                     *1         *1/7 (22 dBm) [22/19/16/13/10/7/4/4]
ap-bhs-400-3                     *11        *1/8 (23 dBm) [23/20/17/14/11/8/5/2]
ap-bhs-400-4                     *1         *1/7 (22 dBm) [22/19/16/13/10/7/4/4]
ap-bhs-400-5                     *11        *7/8 ( 5 dBm) [23/20/17/14/11/8/5/2]
ap-bhs-400-6                     *1         *1/7 (22 dBm) [22/19/16/13/10/7/4/4]
ap-bhs-451-1                     *6         *7/8 ( 5 dBm) [23/20/17/14/11/8/5/2]

Cool thx. Guessing "Load Interval". Looks like 60 seconds is the answer. Including output here for others...
show advanced 802.11b monitor
Default 802.11b AP monitoring
802.11b Monitor Mode........................... enable
802.11b Monitor Channels....................... Country channels
802.11b RRM Neighbor Discovery Type............ Transparent
802.11b AP Coverage Interval................... 180 seconds
802.11b AP Load Interval....................... 60 seconds
802.11b AP Noise Interval...................... 180 seconds
802.11b AP Signal Strength Interval............ 60 seconds
802.11b AP Neighbor Report Interval............ 180 seconds
802.11b AP Interference Report Interval........ 120 seconds

Cisco Access Point Configuration to support 802.11b & 802.11g protocol

How do i Configure access point to support both 802.11b & 802.11g clients on a Cisco 1121G series access point(AIR-AP1121G-A-K9)
Regards
Hitesh

Hi Hitesh,
Check out this excerpt from the 1121g AP Installation guide section on enabling the 802.11b and 802.11g radios.
In Cisco IOS Release 12.3(4)JA and later, the access point radios are disabled by default, and there is no default SSID. You must create an SSID and enable the radios before the access point will allow wireless associations from other devices. These changes to the default configuration improve the security of newly installed access points. Refer to the "Configuring Basic Security Settings" section for instructions on configuring the SSID.
In Cisco IOS Release 12.3(2)JA or earlier, the access point radio is enabled by default, and the default SSID is tsunami.
To enable the radio interfaces, follow these instructions:
Step 1 Use your web-browser to access your access point.
Step 2 When the Summary Status page displays, click Network Interfaces > Radio0-802.11B or Radio0-802.11G and the radio status page displays.
Step 3 Click Settings and the radio settings page displays
Step 4 Click Enable in the Enable Radio field.
Step 5 Click Apply.
Here is a link to the actual document:
http://www.cisco.com/en/US/products/hw/wireless/ps4570/products_installation_guide_chapter09186a00804d2b73.html
Hope this helps!
Rob
Please remember to rate helpful posts....

Solaris support of Irda,Bluetoth,802.11b

Gentlemen
Autor will buy IBM x20,21 or Toshiba Portege 3480-90CT or Compaq Evo n400c
and install Solaris .
1. What of subnotebbok better suited for Solaris ?
2.Support Solaris today Irda,Bluetoth,802.11b ?
3. If not ,can be drivers acquired from another UNIX derivative ?
Excuse me ,if my request would not relevant.
Please copy to [email protected]

All good, I changed the channel from Automatic to a selected number and that found it no problems!
JH

Enable only 802.11b for a single WLAN?

I have only 802.11b client in my production environment (PLC, serial converter, ecc..).
On my WLC how can I configure a single WLAN 802.11b only and other WLAN with all-mode enable?
Regards.
Mirko S.

Sorry, there is a band 802.11g, 802.11b/g but not 802 .11b.
Is correct?
In this time I had to set the datarate 1, 2, 5.5 and 11M.
I do not think it's the right solution.
Regards.
Mirko S.

Please Help! Change RG60G to 802.11b?!

Hey all,
How can i change the RG60G MSI wireless router to 802.11b from 802.11b/g, 802,11g?
Please Answer Asap

When a router is in 802.11b/g, you can use electronics that to connect to the router regardless if they use the b or g protocol. My router's wireless(which is set to both b and g) can be connected by my daughter's machine(that uses b) and mine and my wife's(which use g).
So, the short answer is yes, it should have no problem.

Photosmart C7250 wireless 802.11b fails

My new C7250 works well with USB and wired ethernet, but fails miserably (prints slowly, if at all) on my wireless 802.11b network. All other devices work well on my wireless network. I've spent many hours with HP and exhausted their first line support. They supposedly have opened a case but I have heard nothing in a week. Meanwhile, I took a network trace using WireShark and it shows a large number of retransmissions. (I'm expert with application/network performance profiling.) All you have to do is browse to http://192.168.1.xxx/ to test transmission -- don't even need to install drivers or printers to see the errors. This problem appears to be with wireless support on the C7250.
Has anyone experienced problems or success with 802.11b on this device? How about 802.11g? I would be willing to upgrade my wireless if I knew that it would resolve the problem.
What does it take to escalate a probem with HP for resolution?

All 2004 and newer wireless HP Inkjet printers are compatible with 802.11g and 802.11b networks (otherwise we couldn't get 802.11g Wi-Fi certification). Besides testing for interoperability, we test for a minimum wireless throughput at the TCP layer.
I'd like to see the internal connectivity report that you can generate by pressing the <setup> and <#> buttons simultaneously. Scan the report to a memory card, copy it to your PC and post the image here.
It will tell me information about your wireless network and other networks in the area.
I have a couple of other questions:
Does the slow printing go away after a power cycling the printer and then does it return later?
Does the slow printing go away after a power cycling the wireless-router and then does it return later?
Are you seeing retransmissions of TCP, 802.3 (ethernet) frames or 802.11 frames? I wasn't sure at what layer you are sniffing the data at?
What make and model 802.11b wireless-router are you using?
Do you have encryption enabled? Does disabling encryption change the speed of printing?
How many wireless PC's (Macs?) to you have on your network? Do they all exhibit slow printing?
Have you changed the default fragmentation settings of your wireless-router?
At home, I routinely get 1.5 Mbytes/sec transfer rates between my 802.11g wireless-routers and my HP printers and about 700 Kbytes/sec in 802.11b mode.
One other thing you can try is to go to the printers internal web page, browse over to the Networking, Wireless, Advanced page and enable the configuration "In an infrastructure network use 802.11b behavior".
Regards / Jim B
Regards / Jim B / Wireless Enthusiasts
( While I'm an embedded wireless systems engineer at work, on this forum I do not represent my former employer, Hewlett-Packard, or my current employer, Microsoft )
+ Click the White Kudos star on the left as a way to say "thank you" for helpful posts.

Time Capsule (SIM) expand network with 802.11b/g Airport Extreme

Hi, I try to expand a Airport-Network which is set up with a Time Capsule (SIM (latest model). I like to use an Airport-Extreme-Basestation to expand the network. The two devices will be connected wireless. In the helpfile there is a explantation how to do this with 802.11n-devices but when it comes to the 802.11b/g-devices it just says I should have a look on the apple support-pages. I do not find anything there.
I tried everything, but it did not work. I've had a Time Capsule (first model) which died some days ago (the well known powersupply problem). With this Time Capsule I did not had any problems to set up a WDS.
What to do?
Message was edited by: Kadege

Kadege wrote:
Ok Jolly, thank you, but I started this thread to get in contact to somebody who knows the solution, i.e. has done this before.
Jolly Giant wrote:
try automatic
Of course I've already tried this and the other automatics, but it did not work. That is the reason I am asking for help. So I guess I need special settings.
NOT good !
No protection is not good, ok. But I want it to set up and running and after this I can switch on protection to eleminate some mistake-reasons.
WDS-Mode: "remote WDS-Basestation"
when the UFO joins the TC's network this will no longer apply
But this menu exists and the UFO does not join the network, so I have to select any of this settings!
try these steps provided by Tesserax:
Setting Up Time Capsule as a Second Wireless Router
802.11g AirPort Extreme Base Station -> 802.11n Time Capsule
With "mixed" AirPorts, you will need to configure both routers into a Wireless Distribution System (WDS). Your neighbor's AirPort Extreme Base Station (AEBS) will be the main and your Time Capsule (TC) will be the remote base station in this WDS.
To simplify setup, you should connect your TC directly to the AirPort's LAN port by Ethernet. Once the WDS is configured, you can disconnect the TC and place it at the desired location.
The following are the basic configuration steps to create a WDS:
(Note: To facilitate the WDS set up, jot down the AirPort IDs (MAC addresses) for each of the base stations to be used in the WDS. The AirPort ID and is printed on the label on the bottom/side of the base station.)
Main Base Station Setup - AEBS
o Click the AirPort status menu in the menu bar and choose the wireless network created by the base station you want to set up as the main base station.
o Open AirPort Utility (located in the Utilities folder in the Applications folder on a Macintosh computer, or in Start > All Programs > AirPort on a computer using Windows).
o Select the main base station, and choose Manual Setup from the Base
Station menu, or double-click the base station to open the configuration in a separate window.
o Enter the base station password if necessary. If the base station is using the
default password of public, you will not be prompted for a password.
o Click Wireless in the toolbar, and then choose “Participate in a WDS network” from the Wireless Mode pop-up menu.
o Click WDS and then choose “WDS main” from the WDS Mode pop-up menu.
o Select the “Allow wireless clients” checkbox if you want client computer to connect to this base station.
o Click the Add "+" button and enter the AirPort ID of the base station you want to connect to this base station.
o Click Update to send the new settings to the base stations in the WDS.
Remote Base Station Setup - TC
o Click the AirPort status menu in the menu bar and choose the wireless network created by the base station you want to set up as a remote base station.
o Open AirPort Utility (in the Utilities folder in the Applications folder on a Macintosh computer, or in Start > All Programs > AirPort on a computer using Windows).
o Select the remote base station, and choose Manual Setup from the Base Station menu.
o Enter the base station password, if necessary. If the base station is using the default password of public, you will not be prompted for a password.
o Enter the same network password as the main base station, if necessary.
o Click AirPort in the toolbar and click Wireless. Choose “Participate in a WDS network” from the Wireless Mode pop-up menu, and choose the same channel as the main base station from the Channel pop-up menu.
o Click WDS and choose “WDS remote” from the pop-up menu.
o Enter the AirPort ID of the main base station in the WDS Main field.
o Click Update to transfer the settings to the base station.
(ref: Pages 42-46 of "Designing AirPort Networks.)
802.11n AirPort Extreme Base Station -> 802.11n Time Capsule
o Open AirPort Utility and select the base station that will connect to the Internet.
o Choose Manual Setup from the Base Station menu, or double-click the base station to open the configuration in a separate window. Enter the base station password if necessary.
o Click AirPort in the toolbar, and then click Wireless.
o Choose “Create a wireless network” from the Wireless Mode pop-up menu, and then select the “Allow this network to be extended” checkbox.
o Next, select the base station that will extend this network, and choose Manual Setup from the Base Station menu, or double-click the base station to open its configuration in a separate window. Enter the base station password if necessary.
o Choose “Extend a wireless network” from the Wireless Mode pop-up menu, and then choose the network you want to extend from the Network Name pop-up menu.
o Enter the base station network and base station password is necessary.
o Click Update to update the base station with new network settings.
does this fix it for you ?
edited by the Jolly Green Giant (where Green stands for environmentally friendly)

Get 5800 to use 802.11b even when the router suppo...

I wonder if there's a way to get the 5800 to use 802.11b mode WiFi although the router supports both 802.11b/g. I checked all the connection settings menus and even in the advanced connection settings but I didn't find a way to do this. So does anyone of you guys here know if this is possible at all and if so how it could be done? thx

As I said, it would be dependent upon the hardware. Hope that its not a hardware shortcoming and a software thing which may be resolved in the future.
Message Edited by chanchan05 on 25-Jan-2010 02:24 PM
If you find my post helpful please click the green star on the left under the avatar. Thanks.

WLSE and 802.11b/g Interference Detected

Hello there!
I have 60 AP-1231G units over 8 sites running WDS in conjunction with a WLSE on 2.12FC firmware. A week ago, every AP on every site went into fault mode reporting "802.11b/g Interference Detected". Not matter what I try (rebooting APs, WLSE, clearing fault, upgrade to v2.13, so on) I can't get rid of this issue... Apparently every single AP over 8 sites (located in a radius of 60 miles) detected Interference all at the same time.... ???????
Has any one seen this before and know how to deal with this?
Best Regards,
Richard

Hi Richard,
maybe you are facing a problem with CSCsd63242:
Symptom:
If the 'Fault Severity' of the "Interference Detection" settings under Network Wide IDS settings, is modified, and later if APs are moved from the 'Default IDS profile' to any other newly created IDS profile, the interference faults that are raised
on those APs, are not raised with the correct severity that the user modified. For example, if one enables this setting and changes the fault severity to P3, and if some APs are moved from the 'Default IDS profile' to a new IDS profile, when the faul
ts are raised on these APs, the severity wouldn't be P3, but would be P1- the original severity of the fault.
Whereas, had the APs not been moved from the 'Default IDS profile' to any other profile, the faults raised would have been with correct severity - P3.
Conditions:
This will happen in all pre 2.13.1 releases of WLSE, and only when the APs are moved to IDS profiles which are created new, or (are moved) to copies of IDS profiles which are created new. This will not happen when all the APs either belong to
the 'Default IDS profile' or are moved to copies of the 'Default IDS profile'.
Workaround:
Modify the fault severity first. Then copy the the 'Default IDS Profile' to new ones and modify them in whatever way. Now, even if APs are assigned to these profiles, the correct severity will be used when the fault will be raised. Now, once the co
pies are created, don't modify the severity ever again! If you do, the new severity will be used only for the faults raised on APs belonging to the 'Default IDS profile', but the old severity will be used for the faults raised on APs belonging to the
copied IDS profiles.
Also, don't create new IDS profiles and assign devices to them, always create copies from the 'Default IDS profile'.
Further Problem Description:
The 'Network wide IDS settings' are supposed to be independent of any IDS profile. But, they are not behaving in this way. For more details, see workaround section above.
The problem is resolved in release 2.13.1 and wouldn't occurr even if the APs are assigned to newly created profiles (they don't have to be copies of the 'Default IDS Profile'). The upgrade scenarion is also taken care of - If this problem was faced
in releases prev to 2.13.1, when WLSE is upgraded from rel 2.13 to 2.13.1, this defect wouldn't occurr again.
Hope that helps.
Best regards,
Frank

Airport card 802.11b sees other networks but NOT my network!

Hi. Having a very strange tech issue today...
I have a 1ghz ti-book that no longer wants to connect or even SEE my home network after waking up from sleep. Up until today there has never been an issue. My home network is distributed via a Netgear 802.11b and g wireless router. Again, I have never ever had any issue whatsoever connecting to my network. WEP is enabled. There are also 6 other computers all connecting to the same network via wireless too. No problems.
The crazy thing is I know the card is still functioning properly because I can still see all the other available networks around in my area. Even when I place the ti-book RIGHT NEXT to the antenna on the netgear router, it refuses to acknowledge that it is there. Meanwhile, it is showing all of my neighbors networks just fine!
The only variable in this equation is that the hinge of the display is damaged, such that it won't stay open "by itself". The display normally has to be propped up against something. The machine works fine otherwise, no issues. The weak bezel breaking is an issue that many ti-book owners faced and it has been broken for a LONG time with no performance issues at all. The only thing I can think of is that maybe the wire to the antenna for the Airport card goes up the side of the display and somehow the wire is damaged or frayed. I don't know if this is how the ti-book was designed....does anyone know? Specifically, if the wire for the airport card runs along inside the case of the display on the 15 inch 1ghz ti-book?
If it does not...and it seems like it is not hardware damage to the cable because how else could I still be getting other networks but not my own...then I am stumped as to how to trick my machine into recognizing the network again. I have done the basic things such as booting into single user mode and rebuilding my index, logging in as root and other users to see if the preferences were corrupt, and even installing a bunch of wifi wardriving apps to force recognition of my network and still nothing!
Again the machine is right next to the access point, so what is causing it to no longer "see" it? I also updated the firmware in the router and checked configurations but no changes have been made and all the other machines work fine. Also it has NEVER done this before so I don't know how to troubleshoot it!
*What would cause an airport card to reject the signal that it is configured to connect to? How should I go about getting it to see the network again...without reconfiguring the network which would mean having to update all the other machines, etc.* I have macstumbler and istumble running and they see PLENTY of networks except for the closest one. It is so bizarre. It was working when I went to bed and now today, no network. I have rebooted numerous times, etc.
please help!! i need some ideas!!!
thanks!

a somewhat in depth search across the interwebs has lead me to the conclusion that this problem is also affecting Leopard users as well. (I am on old hardware and running the latest Tiger) To be honest, I can not remember if there was an Apple update right before this problem started to happen. However, it seems real enough and many users out there are having problems re-connecting to their home/work networks after waking from sleep.
just to clarify:
Using a ti-book with normal airport card installed (b not g)
Connected to a Netgear wireless router (configured to manage both b and g traffic)
WEP 64bit encryption key is being used for network
No problems whatsoever until a few days ago
what works:
unplugging the power to the Netgear router (cycling power)
what doesn't work:
waking from sleep
restarting
manually entering network name and password
using 3rd party apps to find network
resetting/deleting Network location preferences and creating new one
deleting AppleAirPort2.kext from /System/Library/Extensions/
using either Diagnostic or Assistant mode to reconnect from scratch
it should NOT be this difficult to solve a networking issue. what is going on here?

How to enable 802.11n in WLC 2106???

Hi,
I had already posted for help with this issue but I could not find that topic in the forums.
So what I need is to eable the 802.11n service in my WLC sice 802.11g is the one working.
Regards!

Hi Nico,
(Cisco Controller) >show country
Configured Country............................. MX - Mexico
Configured Country Codes
MX - Mexico.................................... 802.11a / 802.11b / 802.11g
AP Model
1- AIR-AP1141N-A-K9
(I am trying to convert it to LWAPP but cannot add it to the WLC yet, I have annother opened discussion for this case)
But also I want to enable 802.11a in the rest of APs which are 1131 that were converted from Stand Alone to LWAPP.

Lenovo Ideacentre B540p Wifi 802.11b/g/n Able to Detect 5Ghz?

I am currently using asus router RT-N56U (Dual band - 2.4Ghz & 5Ghz) to share a 200mbps fibre boardband.
However, Lenovo B540p wireless network connection is unable to detect the router's 5Ghz network, only able to detect 2.4Ghz. I thought 802.11n is supposed to detect both 2.4Ghz & 5Ghz?
Solved!
Go to Solution.

hi wenlianglo,
Welcome to Lenovo Community Forums!
The Wifi cards provided on this model onlys supports single band up to 802.11b/g/n 2.4ghz
It will not be able to detect the 5ghz band network.
It is somewhat similar to this brand and model that max out at 2.4ghz
http://www.intel.com/content/dam/www/public/us/en/documents/product-briefs/wireless-n-7260-bluetooth...
The 5ghz version of that is a Wireless AC 7260 that operates at 2.4 and 5ghz.
Best Regards
Solid Cruver
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Help Enabling 802.11b Support

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