We have two different entities we support and both are set up as autonomouse wireless groups. The SSID is the same though so they can use their 7921's between floors and buildings. The problem we have had is that the phones on the first floor were getting the IP's of the organization on the second floor. When you view the AP's on the phone the ap directly next to it on the first floor (the one its suppose to talk to) is listed first, The strange thing is that shows it is connected to the right AP (the first floor one). The AP on the second floor is also listed but its about third down. After the phone sits it will actually change IP's but not all of them. Their were a few phones that took about a half a day to get the correct IP.
My question is how do these phones grab their ip's? I know how DHCP works but I am needing to know specifically how the radio works on the 7921's. What is the boot up process? It appears that it must cycle through each channel starting with the highest and loop through a process in descending order: compare ssid's and then authenticate if possible. I am assuming it is seeing the second floor first because initially they all get the second floor ip. The second floor is on channel 60 and the one it should connect to is on channel 36 (We are using 802.11a). That's how I came up with my descending channel theory.
I just recieved new 7921 phones. I cannot get them to pick up a dhcp address
I keep getting DHCP "Timeout's" and " Configuring IP" . The ould 7921's and the new 7925's work just fine. I have tried removing and reconfiguring the WLAN and Interface on the Controllers. I even removed and reconfigured the DHCP scope in Infoblox.
We just installed MSE with CAS (7.0.201.204 software) and everything works fine and clients are shown on WCS floor maps except for Cisco 7921 wireless phones which dont appear in the WCS map.
I'm getting high utilizatiom from a 7921 ip phone and call quality is getting very low sometimes. What can cause this high utilization?802.11 Mode 802.11a Scan Mode Auto Restricted Data Rates False Call Power Save Mode U-APSD/PS-POLL BSSID xxxAccess Point xxxTx Power 15 dBm Channel 44 RSSI -57 Channel Utilization 153 DTIM period (ms) 2 Security Mode Shared+WEP Encryption WEP Key Management Shared
I have configured a cisco UC520 with inbound called coming in on FXO port 0 and have configured it as a co-line. I have 4 phones set up on the system including the wireless 7921 phone, the problem is that if i answer the call on the 7921 it does not give me the option to hold or transfer the call however the other phones do (7931).
One of my 7921 phones disconnect ten time an hour and during conversations. Sometimes, people who call on this phone are redirected to the answer message.This phone is connected through WIFI network and Cisco Callmanager 4.2 manage all phones (we have about 80 phones on the network). I thought it was a problem with the phone but I exchange with another one and it's exactely the same problem. The problem is just for a line in particular. All the 7921g phones in my company are configured from mac address in the call manager. This problem occured after a storm but I'm not really sure that it's related to.
We have a new deployment where we have 5 total 7921G wifi phones connected via 2 AP541n access points, one connected to a ESW520p switch and then to the UC540 and the other connected directly to the UC540. The wifi phones are intermittently giving no audio when calling each other, however, calls to the PSTN consistently do have 2 way audio. Is this a security issue perhaps? We are running the latest CCA software pack as this is a brand new deployment, also the AP's were upgraded to the latest firmware.
I am trying to install a digi cert on a 7921 and I get the message on import of "certificate verification failed".as there does not seem to be much documentation with the above error message.
We have some remote H-READ APs at a branch office and a 7921 phone which drops calls/loses audio when roaming between APs.We are just using WPA2 without any 802.1x or CCKM/PKC.
Do we absolutely have to set up a radius server/8021.x/EAP to enable fast roaming?We had 2 AP's autonomous with WPA2 before and roaming didn't seem to be an issue. We now have 4 APs over WLC in the same office and the phone calls are very unstable.
this computer was working on this router no problem. computer crashed and noiw computer is fine i connected it to my cable from ny desk top comutyer and works fine. It just cannot hook up to the wireless connection?
I've recently installed a Cisco 2504 WLAN Controller with (5) AIR-LAP1042N-A-K9 Access Points. Everything is working fine as far as the APs connecting to the controller, and clients being able to connect to the WiFi and get network access, etc. The one problem I have is that one AP's b/g/n radio is not active.
If I go to the WLAN Controller management web page, and look at the Access Point Summary, it shows that I have five (5) 802.11 a/n radios active but only four (4) 802.11 b/g/n radios active. I know which AP is affected and clients can indeed connect to that radio using wireless 'B' but not 'N'.I have only one WLAN configured on the 2504 (WLAN ID 1), and one AP group name (default-group) so there are no special groupings of APs. I have been through every page of the Controller management page with a "fine tooth comb" and cannot find any place where I could accidentally be turning off the a/n radio for a single controller.
The network consists of 133 RAPs/MAPs/1131 APs and all joined the WLC. When I check the 802.11 a/n radio tab, I see only 129 APs and the 802.11 b/g/n tab I see 133 APs. I found out that 4 LAP1131 is not showing in the 802.11 a/n tab. I tried resetting the AP thru the WLC and still the don't see it in the 802.11 a/n tab.
I've a 2106 WLC and the software is upgrade to 7.0.220.0. There are 3 APs with external power adapter work normally on it. Here is the problem: There is another AP with external power adapter has join the the WLC successfully. But it can not enable the radio 802.11b. Following is the error message on CLI
(Cisco Controller) config>802.11b enable AP001d.a1ef.b5f4 Cisco AP has not enough in-line power to enable radio
I've just bought an access point AP1141N for my small business but unfortunately there is only Radio 0- 2.4G available through web interface. It is working fine but I would like to have access to radio 1 (5Ghz) as well.
I have a westell DSL modem/router supplied by Frontier. It connects only to the telephone line and via cat5 to my main router, a cisco EA6500. Everything seems to be working fine, I just would like to understand a few things.I disabled wireless radio on the westell, enabled it on the cisco, so I have just one WIFI network active.I know I am not supposed to have two DHCP servers active, but I did not know how else to be sure the CISCO would get a good address, so I left DHCP active on the WESTELL, and also enabled it on the CISCO to provide service for the rest of the net.The WESTELL admin interface is at 192.168.1.1, and assigns addresses in this range.According to the WESTELL, the CISCO is at 192.168.1.27, which I assume was assigned by DHCP.The CISCO has an admin interface at 10.144.224.224, and assigns addresses in this range to all the other devices on my net.As I say, everything works.I can access both router admin pages with a browser on my main 10.144.224 network, and can ping both.But I don't understand why it works.What rules allow me to talk to the WESTELL admin page from the CISCO private network, but do NOT propagate the DHCP access which is at the exact same IP address.
It is great that it works. But should I really have disabled DHCP on the WESTELL and assigned a static address to the CISCO? Or is this situation actually provided for in the rules, not just a lucky accident that it works?Why does the scanner say that the CISCO DHCP is "Unknown" rather than Authorized or Unauthorized? Is there something I can or should do to get it to be "Authorized"? I can ping 192.168.1.1, but not the 192.168.1.27 (times out), and yet when I ping a non-existent 192.169.1.3 I get "Reply from 192.168.1.27: Destination host unreachable".
Im using WLC 2504 with vertion 7.4 and 2600 LAP's the access points are working fine when its isolated from the live network, but once its in the live network the AP radios resetting (APs won't reboot) and unregistering from the WLC in random intervals,
I am building a BOM for a customer and I need to present cheaper options than 3500 or 3600 APs. I thought of these two models but I don't know what models of antennas to pick.1602 is a 3X3 MIMO with 3 antenna connectors. How many 2.4 GHz and how many 5.8 GHz antennas should I pick for each radio?2602 is a 3X4 MIMO with 4 antenna connectors. In this case I suppose there are 2 connectors per radio.
We have 6 1262 APs and a 2504 WLC. 5 of the 1262 appear correctly with 2 radios. One of them shows 1 radio. See screen shots below showing model numbers and interfaces on the AP with one radio available (All other 1262s show 2 radios as normal). Tried resetting the AP to factory default, but same result. Do I have a defective AP?
I have a 2504 WLC with two 1522 AP's one is Root the other Mesh the 802.11b/g/n/ Admin Status says Up but the Operational Status says down. How can I turn this on? When I change the Admin status to enable I get a "Error in Enabling Admin Status"
When I view web page of 1410 radio is show ethernet enabled and up but radio as disabled and down. I have tried to enable but to no avail. Is this a sign my radio has gone bad?
I have cisco LWAPP 1242 AP already joined controller but 802.11b/g shows down on the radio 0 interface. I tried to enable it but it comes with an error" Error in enabling admin status". I have resetted the AP to factory default settings and even replaced with NEW AP.
I am running the upgrade tool on Aironet AP1230B-A-K9. I can't join the controller by using the upgrade tool. the error is "AP does not have Supported Radio". What radio is the upgrade tool or controller look for on Aironet 1200 series? This AP is running 802.11b. However, I have several APs which the same model is running on the same one controller. The controller is model 4402.
I am facing a problem with my access point AIR-LAP1141N-E-K9, which was converted from LWAPP to autonomous, radio Interface Dot11Radio0 is going to reset down state very frequently.AP is connected to WS-C3560G-24PS (POE) switch. [code]
Running vwlc 7.3.101 and encountered a smaller issue.When you enable / disable a SSID, all AP's reset their radio interfaces... causing everyone to drop their connection.
Not sure if it's new in WLC 7.4 code, but I now see "Dual-band radio" section everywhere in addition to "802.11a/n" and "802.11b/g/n". My dual band APs (for example 2600's) show up under both 802.11a/n and 802.11b/g/n as in the past. So what is this new category "dual-band radio" for then?
We are using the CISCO-DOT11-ASSOCIATION-MIB in a Cisco Air AP 1140 device with release 12/4(21a)JA1 to find out the radio type of wireless client (B/G or N). The clients in question are of type Wireless N and Wireless B/G. We are querying cDot11ClientDevType and cDot11ClientRadioType but the relation between the returned values and client/radio type is not clear:
2 devices returned: cDot11ClientDevType = 102 ==> pc4500Client(102) - client with a 4500 radio and ClientRadioType=2==> ccxClient(2) - CCX- compatible radio1 device returned: cDot11ClientDevType = 1==> unknown (1) – unknown and ClientRadioType= 1==> unknown(1)
Questions: On a Cisco Air AP 1140 device
What OID needs to be polled to find if the client's radio type?What value is returned by this OID if the radio type is B/G?What value is returned by this OID if the radio type is N?
Recently installed a 1262N AP in autonomous mode. Have both 2.4 and 5Ghz radios running- Both on separate SSID and VLAN. I think I have 5Ghz channels using 40Mhz bands (bonded) but when I do iperf throughput test I only get about 25Mb throughput. I am sitting within 10 feet of the AP. When I switch to 2.4 I get around 60Mb and that's not bonded. I have tried multiple interfaces on my client side laptop I'm testing with since I thought maybe it was a quirky card or driver but I get same results. Am I doing something wrong here? My laptop shows a 300Mb connection to 5Ghz and 144Mb on 2.4Ghz but I know that's not true thorughput so that's why I was testing this to see what I was really getting and now I'm confused.
