I have 3 AP541Ns setup in a small environment. The wireless clients use laptops to attach, via RDP, to a Microsoft Terminal Server. They need the ability to walk, with laptop, from room to room, IE roaming wireless clients. The issue is the clients drop and re-attach constantly and takes up to 5 minutes to re-attach to the WLAN / RDP session. Is this a symptom of going from WAP to WAP and is their anything I can do about it.
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As I posted about in the other AP541N thread about degraded performance, mine did a strange client disconnect last week. It dropped all authenticated clients, but they all thought they were still connected. A quick disable/enable of the wireless card on the laptop would get the computer back on the AP.
This same thing happened again today.
Device information and configuration:
Device: AP541N
H/W: V01
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I have 2 AP541N's set up using a WDS bridge, broadcasting a single SSID. I am using WPA-PSK for the bridge and WPA/ WPA2 and CCMP (AES) on the SSID. I only have around 75 (Mac, PC, iPad, iPhone and Android) devices that use wireless. Some are laptops that roam around from AP to AP, and are using LAN when they are not roaming. I have increased the roaming agressiveness on PC clients and this doesn't seem to have resolved the weak connection. At most, I have 50 clients trying to access the wireless at one time. My problem is that they keep on dropping the connections and have real problems reconnecting once it's dropped. After 4 or 5 tries, they may or not be able to reconnect.
View 1 Replies View RelatedI was having this issue with my Dell Precision M70 laptop until I made this tweak to the Intel Pro Wireless 2200BG card that is built-in and so far its seems to be making a difference with it connecting to our Cisco 541L APs and acquiring a DHCP from our network. However, the only thing different I noticed after making this change is that it is initially a bit slow at connecting to the Cisco APs.
[URL]. Click Advanced > Adapter Settings > Advanced tab. 2. Select Power Management and uncheck Default / Auto and move the slider to Highest / Maximum Performance.If the slider is already at Highest / Maximum Performance, move the slider to another setting and then back to Highest / Maximum Performance. We are still experiencing this issue with our Dell Latitude E4200 laptops but need to verify that they are using the latest wireless network adapter drivers. In addition, I am planning to tweak the PSP as I did with the Intel Pro Wireless 2200 BG.
F.Y.I. Our PDC and Primary DNS server is a Windows Server 2000 Our BDC, Secondary DNS and DHCP server is a Windows Server 2003
AP has static IP with 2 SSIDs setup, one for guest one for domain access(both have the same issue), tried with multiple devices, both win and MAC, all show "connected but with limited access", ipconfig on those devices, all show ip "169.254.X.X", but event log on AP indicates that "authentication has been completed sucessfully".
using RADIUS server for authentication. management VLAN ID "1", SSID VLAN ID "11"
I have an AP541N-A-K9. For the past couple weeks it stops work at 5:00pm. The clients can see the SSID but when they connect it fails. The only way to get this to work again, is to set the radio to 5GHz 802.11N. Setting the radio to anything else does not allow the clients to connect.
I have some older clients so I need this broadcast G as well.
I have upgrade the software to AP541N-K9-2.0(1). Does not make a difference. Reset to Factory defaulst and reconfig does not make a difference. There are no Rouge AP's in the area.
Between the issues these have passing DHCP from a Windows server and now this, I'm thinking these devices are not fully baked.
We have with AP541N-E-K9 on the latest firmware.
Our AP541N-E-K9 keeps dropping all WLAN connections and will not allow us to connect via WIFI. I have to switch the unit off and on but even so sometimes it will take 10 mins for the WLAN to accept new connections. Nothing has changed on the network for months as it is a very basic scenario ie Draytek DSL Router -> Cat5e cable -> AP541N-E-K9, thats it! The AP is really only used for guest access and may have about 15 staff connected via WIFI at any one time.
Can the access point AP541N connect to wireless clients with 802.11g/a simultaneously?
View 1 Replies View RelatedI'm having a problem with my clients dropping the network connection constantly throughout the campus. I am using a Cisco 5508 controller and the APs are LAP1141N. At first I thought it was a roaming issue but I tested with only 1 AP and the problem persisted, I can tell you that we don't have interference problems and that our old linksys APs used to work without flaws.
View 1 Replies View RelatedFor 2 year now we have been running aironet 1240ag access points throught our warehouse. We use a telnet session on our handheld scanners to connect to our database on the main server.This last week our scanners started getting dropped from the access points serveral times throught the day and often would continue to get dropped at 1 minute intervals for several minutes at a time. This appears to be happening on all of our access points and is affecting all of our scanners but not at the same time.Each time a clinet is dropped we get the following event log on the AP.
Sep 29 11:57:14.807 -0500 Warning Packet to client 0c77.1a3a.6ff7 reached max retries, removing the client
Sep 29 11:57:14.800 -0500 Information Interface Dot11Radio0, Deauthenticating Station 0c77.1a3a.6ff7 Reason: Previous authentication no longer valid
All the AP's are setup the same with the below config
!! Last configuration change at 14:24:18 -0500 Sat Sep 29 2012 by Cisco! NVRAM config last updated at 14:24:18 -0500 Sat Sep 29 2012 by Cisco!version 12.4no service padservice timestamps debug datetime msecservice timestamps log datetime msec localtime show-timezoneservice password-encryption!hostname AP_10!enable secret 5 $1$lcac$OO/IqOlgR2.TPP/BFg7nX1!no aaa new-modelclock timezone -0500 -5!!dot11 syslogdot11 activity-timeout unknown default 128dot11 activity-timeout client default 128dot11 activity-timeout repeater default 128dot11 activity-timeout workgroup-bridge default 128dot11 activity-timeout bridge default 128!dot11 ssid jefferson377 authentication open guest-mode infrastructure-ssid optional!power inline negotiation injector 9caf.ca01.d818power inline negotiation prestandard source!!username Cisco privilege 15
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I have several wired and wireless devices connected to the router which is running the latest firmware (2.0.2.1) and I have this issue with all wireless devices. The router is configured for B/G/N Mixed, Channel 6, and to broadcast the SSID. Security Mode is WPA2-Personal w/ key renewal set to 3600. Connection control is configured to allow only the desired MAC addresses. All wireless clients are configured for DHCP (as are some of the wired clients that do not have this issue). I have tried various setting changes over time, none of which have resolved the issue.
What I have determined, and may be useful, is that each time this occurs I am unable to ping the router from the client and have no connectivity to the internet or other devices on the network. If I ping the WAP address (reserved for internal use address) I get a response and then connectivity is always restored after doing so. In other words, I ping 192.168.1.1 and get no response, immediately ping 192.168.1.2 and get a response, then immediately ping 192.168.1.1 and now get a response and connectivity is restored. If I skip the first step and just ping the reserved address followed by the router address result is always the same. It would appear the issue is between the the two router addresses.
Prior to owning this router I had a Linksys BEFSX41 that I had for about 7-8 years and a WAP54G I had for about 5, both of which still worked and I never had this issue with my wireless clients. I went to this router for the increased performance and am very happy with that aspect, however this issue is unacceptable.
Basically i got a belkin(on a tight bufdget) wireless n modem(f548633) last week. and when i first set it up it was fine except it disconnectiong everytime ia setting was changed on it and taking ages to reconnect to it.
anyway in the last 2 days its started dropping connections to anyone using the wireless. thing is it doesn't completely disconnect it just goes down to around 5kb transfer but when trying to acces the router through IP it doesn't load unless i disconnect and reconnect. i could deal with this at first as it was once every few hours but now its happening every 5 minutes. i plan on sending it back but thought i'd have one last ditch effort at working this out. my security log shows alot of ACK sends to my IP.
02/07/2011 23:26:08 sending ACK to 192.168.2.4
02/07/2011 23:26:08 sending ACK to 192.168.2.8
02/07/2011 23:10:15 sending ACK to 192.168.2.8
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WRVS4400N with firmware version V2.0.0.8.
After about an hour it routinely drops wireless clients. Wired clients are fine.
Re initiating a connection from the clients usually restores the connection fine. Sometimes this is just doing something to force the client to use the connection for some active function other times it's forcing the client to renew it's DHCP address or power cycling the client. The same experience is happening with a TioVo on WiFi, an iPhone on WiFi, and a WAP4410N in Client Bridge mode.
While this may not sound that bad, it's creating 2 huge issues that shouldn't occur.
First, the wireless clients that are dropped are not accessible from other clients on the network until they reestablish their connection. There is no indication on the client of an issue with the connection. For example, a TiVo connected over WiFi isn't accessible from the network until it reestablishes it's connection. It works fine then for a hour or so.
Second, for the WAP4410N (firmware 2.0.3.3) in Client Bridge mode, this client requires a power cycle to reconnect to the network. In much less than an hour it stops responding to it's IP address for it's management page, but continues to pass traffic from the multiple wired items it's bridging. Then, after about that same hour, it stops passing this traffic too.
I tried running the WAP4410N in WDS Bridge mode but was unable to get it to work. For this testing, access to the management page was the test with no devices behind it. So, it's possible that that access is what was broken and that it may have passed traffic. No wireless clients need to connect to the WAP4410N, just the bridged wired clients.
This WAP4410N was previously acting as a brige to a WRT54G with no issues, but at G speeds. Which makes me think it's an issue with the WRVS4400N dropping clients and the clients not knowing it.
In my district, I have 11 schools running many LWAPPs and WAPs, connected to a single WLC and managed by WCS.Only the 4 LWAPPs in the administration building experience the following issue:When about 8-10 WiFi devices are present on one AP in the bulding (which usually happens during a meeting), all APs show a "Load Threshold Violation Error" and start dropping some clients intermittently and refusing to connect some new clients. There doesn't seem to be a pattern as to what sort of clients drop, or which ones can connect or re-connect. My WLC is on the same subnet as these LWAPPs since it is in the same building.
If I reboot the APs, this sets things back to normal for a while, but eventually the APs will show the same errors and the same connection problems occur. I have tried adding an LWAPP to our Boardroom, which is generally where users are located when the WiFi drops. For a while, this solved the problem, but it has since returned even with the additional LWAPP. Currently, I have all four LWAPPs in this building set to AP Mode H-REAP, as I do in my other schools. I understand this is normally bad practice; when your APs are on the same subnet as your WLC, generally those APs should be set to AP Mode Local. However, in my case, Local causes more drops and connection failures than H-REAP, so H-REAP is the closest thing I have to a "solution" to the problem.
I have checked the logs on my WLC and in WCS, and do not see any error messages besides the load threshold violations. I have tried increasing client count, and adjusting interference settings, but nothing seems to work. All LWAPPs are AIR-LAP1131G-A-K9 on IOS12.4(18a)JA2. WLC is Model 4404 on 5.2.193.0 firmware.
I have 4 desktops cat5 to Dlink DIR 615 router. All work fine. Any wireless clients, laptop or netbooks, see the desktop computers for a while then disconnect somehow. All machines can see the Internet through the router at all times. The desktops disappear from the laptop/netbooks but the wireless machines can be seen from the desktop computers but clicking on them gets 'Access Denied' message after a wait.3 desktops = XP, 1 98SE. All laptop/netbooks = XP
View 2 Replies View RelatedI just installed a brand new AP541N-A-K9 (running AP541N-K9-2.0(1) software) and cannot seem to add a SSID. I've tried both from CCA and directly from the Web interface (Wireless:Wireless Network Setup menu). The Add Another button doesn't seem to do anything. I've even tried multiple browser versions.
View 1 Replies View RelatedI have 3 AP541N. I become this not in a cluster. The APs standalone in the room. The first AP connect with cable to a DHCP Router from a other manufacturer. The other both APs should be connect over WLAN.How I must configure the APs? Which parameters must install?
View 1 Replies View RelatedI have 2 AP541N access points. Have been working well for a couple of years. Later last year they just dissapeard from CCA one day. COundt access them but they were still delivering 'wireless' so to speak I have recently put them back to defaults to try and get them back in to CCA. i had one, but not the other. They would work fine via GUI/web access.Then i updated them to 2.0.4 (both images) and since doing that i have no access to either of them via any form.
View 2 Replies View RelatedI mistakenly mis-configured "Management ACL mode" on my AP541N.
Administration>Administration Access Control>Managment ACL Mode
I set this to "Enabled", the problem is I only entered 1 IP address, and that IP address is the SAME IP as the AP's own internal interface. I was not thinking and entered that IP out of habit when I meant to enter my workstation's IP. The FW does not have a safeguard against this.
So, as you can see, this is a big problem, because now I have completely cut off all access (That I can think of) to the router. I can never access the AP as that IP because if I set my workstation to that IP, 1) There will be an address conflict, 2) My computer won't route traffic to the AP out its NIC because it recognizes that IP as itself.
we have two AP541n APs that were clustered togehter. They are powered using PoE. The other day I discovered one of them wasn't working properly. I couldn't log into it from the web interface so I unplugged it and plugged it back in from the PoE switch. That didn't work. Since then I have taken it off the network and have tried to reset it and I still can't access it. I've tried connecting to it from the default IP, which according to the admin guide is 192.168.10.10, and that doesn't work. I have tried using Telnet and SSH to connect to it using the default IP and the static IP we had set for it. I have set up a little linksys router and plugged the AP and a laptop into it in hopes it might get DHCP, but that hasn't worked either. I have also noticed the WLAN 2.4G and WLAN 5G lights are not coming on. The PWR, SPEED, and LAN lights all come on. The DIAG light comes on when it's furst plugged in and then turns off. Right now it is not plugged into PoE so that light is off too. We had both APs plugged into an ESW-520 that was plugged into a UC560 which had recently been updated to the latest firmware: 8.6.1. The short story is I don't have any connectivity to my AP541n, even after being reset. No wireless, no Web GUI, no ping, nothing. Has this thing become a large paperweight?
View 2 Replies View RelatedI purchased quite a few of these APs as they listed the ability to function in WPA2-PSK mode, but on initial configuration I see that this may only apply to standard AP mode? Is there any way to configure WPA2-PSK on an AP541 to AP541 bridge? Unfortunately, this is a must have for our client. If not, what would allow for this with an external antenna port?
View 4 Replies View RelatedI have configured two AP541N in a cluster, but only VAP0, is listed as clustered. None of the VAPs seems to be clustered. What can I configure to get all SSIDs clustered?Product Identifier:AP541N-E-K9Hardware Version:V01Software Version:AP541N-K9-2.0(4)
View 22 Replies View Relatedwhen moving throughout our building my laptop will not switch between AP’s unless it loses its connection with its existing AP then it will see the other AP that is closer and connect to it.
For example, I start at one end of the building where it connects to AP#1 at 270Mbps, if I then slowly go to another section of the building, the speed will drop all the way down to 24Mbps, but it will not switch over to AP#2 unless I turn off AP#1 then the laptop instantly switches to AP#2 at 160Mbps. Again the same behavior if I start walking back the other direction. The laptop will not disconnect from AP#2 until the signal is lost.
With my 2.4GHz wireless 802.11g AP’s (WAP200) I can roam around the building and the laptop will happily jump between AP’s always staying with the faster of the two available.
Settings are all pretty basic.
Mode is set to 5GHz 802.11n Channel is set to AutoA single SSID is running WPA Personal using wpa2, CCMP (AES)Channel is set to AutoChannel Bandwidth is set to 40MHzClustering is enabled and the AP’s see each other just fine.
we want to use a WAP 2000 Box as repeater of an AP541n. Do naybody know this is possible or not?
Which Cisco AP boxes are compatible to act as repeater on a AP541n?
We are considering order the AP541N for our network. A few questions...
1). Are there multiple models of the AP541N? or just one cisco part number?
2). I am assuming the basic antenna comes with it. If this is something that I need to buy seperate.
3). Are there part numbers for the POE injector? Need to know part numbers on the AP541N and the poe injectors?
4). We would buy a couple of these and run them in cluster mode. My understanding is that I won't need a controller. Do I need to buy a certain model to use the clustering or is that available on all the AP541N?
5). Can I have this talk to active directory to authenticate users? Is that tough to do? Do I need install some kind of agent on a domain controller? I have configured the ASA to use Active Directory for authentications. Should it be any more difficult that that?
I have setup a few other Cisco APs before and am generally familair with wireless. But, I am not a "wireless expert" and don't have any experience with this particular product.
I recently attempted to update my access points Software from AP541N-K9_1.8(0) to AP541N-K9_1.9(2). As soon as the update and reboot were complete I could no longer connect to the wireless network using my iphone. I switched back to the secondary 1.8 software and could immediately reconnect my iphone to the network. Upgrading to 1.9(2) changes a setting or is flawed.
View 1 Replies View RelatedI was looking for some clarification on the capabilities of these devices to allow roaming of clients between AP's. Take a basic scenario of 3 AP's and a single SSID. I know the AP541N has clustering which uses the Fast Client Roaming Protocol, which basically does a quick re-connect to the new AP. Not quite as seamless as using aironet and a controller, but still pretty good.
Question 1 How does the WAP321 handle roaming? Obviously without the clustering feature you would have to configure each AP independently. But after setting them up, would it support roaming in a similiar way to the AP541N??
Question 2 Would running three standalone Aironet 1141's operate any differently in terms of roaming?
In summary I like the roaming capability of the AP541N but hate the large clunky form factor. I need something that can be mounted in an office environment (ceilings) that will handle easy client roaming. A short disconnect isn't a concern as long as it reconnects on it's own. Wireless controllers are a little out of the price range for this setup.
i have a 541N running the latest firmware 2.0.2.It has 3 SSIDs for the 3 vlans that it has.I have configured b/g/n.The power is fullIt is powered via POE.The end customer tells me that the range it covers is very very small!Comparing to traditional low budget APs the power is very very low.It does not cover 30-40m in free space where other APs do.Do i need to configure something more in the radio settings?
View 2 Replies View Relatedtrying to get my new router and bridge to work I am close to give up.
1. I have bought a RV220W router this will be connected to Internett and all wireless devices will connect to it. It seems to work fine. I have enabled on AP profile where others easyli can access internett through router WAN port
2. I have bought a AP541 Access point that i want to have as a bridge (We earlier used 3COM without problems) Some Computers and other stuff like printers will be connected to this through a switch for the Ethernet port on AP541. (I dont want any clients to connect wireless to AP541N)
Before I start asking detailed questions, i want to verify that my setup is possible. Reading the Information on the shops webpage clearly states that AP541N can work in bridge mode, but struggling to find any good explenation makes me wonder if this really is true.
Can Cisco AP541N works as a bridge together with RV220W.
I have an SA520W firewall, and am implementing a new AP541N. On the SA I am using port 4 to connect the AP. Trunking is on with Vlan 1 and 25. Connecting the AP I am able to use VLAN1, however when I assign a new VAP using Vlan 25, I only receive IP addresses for VLAN1.
View 1 Replies View RelatedI have an AP541N-N-K9 Dual Band Access Point which I'm having some issues with. We have a few users with Android and iOS devices and they want to connect to our corporate network but when we configure the wireless network details in both OSs none of the devices get an IP address. We have an MS AD/DNS/DHCP infrastructure. On looking at the logs of the access point I can see the devices successfully authnticating but then I see the connection being disassociated and deauthed. A few seconds later the device attempts to get an IP address again and the same thing happens again. This loop just keeps on going forever. If we connect to the AP with an MS OS everything is fine. [code]
View 10 Replies View RelatedAP541N wireless AP, what POE injector are you supposed to use?The web site states any enterprise class af POE injector will do, but the AP1131 POE injector does not work with the AP541N.
View 5 Replies View RelatedI have a Cisco AP541N and have been attempting to configure it. I assigned a Static IP with the Subnet, default gateway and DNS info. Everything seemed to be working fine yesterday when it was deployed. Today, there appears to be no internet access. We are able to connect but have limited access.
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