I have 1 WLC AIR-CT5008-K9 version 7.0.98.0. with iPads connected to a WLAN with [(WPA+WPA2)(AuthPSK)].and have constant disconnections. But the Laptops do not have problems.
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Ive been through 5 routers. All of them, except ONE has had a very annoying problem. The WiFi disconnects like anything randomly. The funny thing: The 4 that disconnect have all been working on 802.11n 300mbps. The 802.11g DG834Gv5 is as solid as a rock, maintaining connection for months on end, no wireless dropouts. Ive tried fiddling with the 4 routers (DGN2200, DG834N, Belkin N1 Vision, and another one ive forgotten), putting them onto 54mbps, which always works perfectley. When its on 145mbps or 300, they disconnect. No pattern, just fall off. When reconnecting, I can see them in the network selection thingy, but it just gives me the error 'Cannot connect to XXXX', only solution is to turn off the wireless radio and turn it back on via router interface.
View 6 Replies View RelatedUsing wireless PEAP via a 5508 controller and a verisign cert on ACS 4.1,The iPad still wants me to verify the cert even though it is a trusted CA.
View 2 Replies View RelatedHave WLC 5508 running 7.4 code; have wlan setup to allow access to internal network. Users on ipads should be able to connect to this wlan and authenticated via certificate instead of PSK. We have setup laptops that are part of domain to use internal CA for authentication to WLAN. Ipads are not part of domain so we are not able to use the same model, or can we use the same model for authentication?How to setup WLC to authenticate ipad users via certificate instead of PSK while connecting to the WLAN?
View 1 Replies View RelatedWe are implementing a new corporate wireless network with Cisco 5508 WLC's and C3602I LWAP's. We are not running any RADIUS or EAP at the moment and are starting with WPA2 w/ AES with a pre-shared key to begin piloting. The issue we are having is iOS based devices (iPhone/iPad) do not seem to want to connect. We just get a could not join wireless network messages. We have had success with several Windows based laptops, my MacBook connects, as well as several different Android devices.Looking at the logs on the WLC I see these entries which correspond to the MAC address of my iPhone.
*apfMsConnTask_6: Jul 17 17:25:20.620: %APF-3-CHECK_SUPP_RATES_FAILED: apf_utils.c:376 Could not check supported rates. Missing Supported Rate. Length :0. Mobile MAC: 24:ab:81:92:4d:97.
We have a remote location with 1 LWAPP AP connecting to a 5508 WLC. We are doing 802.1x auth/wpa2 on 1 SSID for iPads to connect to. Now we want to simply connect a printer to print wireless using AirPrint from the iPads. The problem is how to get the printer connected to the wireless network specifically to the sane SSID? Will the printer need to support 802.1x or have the ability to do certificates? Is there a better way to do this.
View 5 Replies View Relatedon a 5508 WLC can we create new SSID for I PAD / IPHONE Users without having ISE, only I phone / I PAD are allowed to be authenticated rest all should be denied. IS this possible?
View 8 Replies View RelatedI recently had a 5508 controller installed and configured for a corporate network as well as internet only guest access. Users authenticate via 802.1X key management on the corporate network and web authentication via guest. This works fine, however, I've run into a problem. We also use iPads for inspections and the inspection site is housed internally. I've had a network admin create an exception in the firewall that will allow connection to the internal sites from the guest network, however, it does not function. I did find that if I connect an iPad to the corporate wireless network I'm able to download the necessary certificate to the device but that only works if I use my login information which is not something I am interested in doing. Is it possible to enable another authentication for the corporate network without breaking the functionality of the existing 802.1X authentication? What could possibly be the cause on the guest network not allowing connectivity to the internal sites, even though the exception has been created?
View 3 Replies View Relatedrecently we have purchased Reflection - an AirPlay mirroring software. Basically install Reflection in the laptop and you can view the screen of the iPad or iPhone via wireless network. we have tested in home wireless network no problem, but when connect to the cisco network, the iPad didn't recognize the REFLECTION installed in the laptop.
we are running WLC 5508, WLAP AP-1331AG, we can ping from laptop to the iPad laptop and ipad can access network without any issue. there is no any application port has been blocked between the client via wifi extra details for REFLECTION: [URL]
We have two SSID's Guest and Corp. We are using 5508 controllers.
The problem is that if an iPad user is connected to Guest SSID and then try to connect to Corp then it fails saying "Unable to connect to Corp". After 10-15 retires the same iPad connects successfully. The problem doesn't happen on windows PC. I have attached debug for one of the clients.
We have a centralized WLC with some branch office with AP's in Flexconnect Mode. The Wlans are configured to use Web Authentication (Landing Page). The Landing Page is Cisco Default.
We're experiencing some problem with Apple Devices, on some the Landing Page apperars on some not. The WLC Software is about 1 year old. On a XP machine the landing page doesn't appear too, but you can type in the address manually and it works.
Whats the best solution to include the Apple Devices successfully in the WLC Wireless World.
We find that some of the utilized iPads (iPad2, iOS 5) have a significant delay to connect to the WiFi after waking up.. though some of them show the WiFi-icon instantly after wake-up.. That is causing the crestron App on it to "malfunction", which is to say that it can't connect to it's server and goes back to home screen to allow re-connect..
WLC and LAPs using the latest software (7.2.103.0).. encryption is WPA2/PSK..
I changed the WLAN to use 802.11g only.. changed Beacon-Time.. changed encyption.. changed WMM settings..Alas, the iPads that expose this behaviour do not show any difference with the changes..
We sort of recently got wireless internet, have had it for 2-3 months now I think and everything was running smoothly. Yesterday my internet randomly disconnected and it was only from this (my) pc, the internet was fine for everything else in the house which includes another pc, 3 laptops, cellphones, ipods, and gaming systems. It has been going out randomly since maybe 6pm yesterday. I have to completely restart my computer for it to work again. The only thing I tried was to unplug the modem and router for a bit and plug them back in, which did nothing for my computer lol. When I did that though the other computer had an ip conflict that came up which it's had in the past with my own pc but after I restarted my computer they were both fine. My computer still has random disconnections from the internet though. I don't understand why my computer is the only one affected and why it's starting now when it's been fine for the 2-3 months it's been working.
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at our office we've recently upgrade from a old consumer-grade linksys wag200g modem/router/ap to the Cisco SRP527w. The Cisco is suffering from very frequent ADSL disconnections. These disconnections happens when there is some traffic to the internet and they seem to don't affect the LAN routing: on the weekends there are no disconnections at all while during the working hours there may be disconnections every FEW MINUTES making this router unusable. Often these disconnections force us to do a full reboot of the router.
Firmare version is SRP520W-1.1.19, the latest. ADSL line is a 6Mbps/640kbps. Noise margin is about 11dB for downstream and 20dB for upstream.
No voice line is used and therefore they are both disabled. 2 wireless network are active. The old linksys was (and is) working correctly, no adsl disconnections at all. Never.
What is the cause of periodic disconnections? I don't know what kind of information I'm supposed to give, but I can say that the internet disconnects randomly but connects again.
View 2 Replies View Relatedi have problem in connecting internet.Repeatedly it is disconnected from internet gateway.
View 5 Replies View Related- Small Home-Office network based on a Cisco WRV210 VPN Router connected to another WRV210 in a remote location.
- The WRV210 provides 2 WAP-protected SSIDs, one for the office network and one for visitors
- Wireless channel is set 5 channels away of the closest networks (using inSSIDer)
- There are about 12 wireless devices, 4 connected to the office network the rest to visitors. Not all devices are connected at the time of failure. All wireless devices use DHCP which is set to last 1 day and provide 100 IPs.
- The wireless devices are 1 desktop, 3 notebooks (all clean), iPads, iTouch and Nook.
- The failure symptom is that almost daily, and most likely around the same time, no wireless device can connect to any of the SSIDs unless the router is power-cycled. During the failures, which we have witnessed first hand, there are no apparent reasons: no new SSIDs, now SSID in close range on the same channels, nothing we can easily observed in the network in terms of connections or unusual activity.
- A weirdo also presented by the WRV210 was that its web pages were shown erratically. That was corrected by downgrading the firmware from the latest to previous version.
We have used a loaner Linksys router WRT54GC with only the visitor Network on it and even though the situation is not as frequent, it has happened already a couple of times.The WRV210 is out of warranty and discontinued, so we get no support from Cisco that is worth paying for.
When there's more than the usual (3) computers connected to our home network, i suddenly get internet problems which includes continuous disconnections from skype and wow (That's those I've noticed so far).Calling my ISP won't work because they will only say that since it's only my computer then it isn't their fault etc.
View 19 Replies View RelatedI have had my DIR-825 for a year and half. My computer that is wired directly to the router keeps losing the connection to the router - unable to obtain an address. All of my other devices (that are connected via wireless) still hold the connection with no issues. I've checked the cable, unplugged/plugged back into the router, and it shows connection on the network card on the back of the computer.I have used the system interface to ensure the address is a valid one. I have powered up and down the computer multiple times and have also powered down and up both the router and the cable modem.
View 1 Replies View RelatedI have setup the existing wifi router (couple of years ago) so do have the basic networking knowledge but am not up-to-speed with all the latest developments in the industry2. ISP have provided a '******' ADSL modem that i need to connect to get this whole netwrok working. its only supports ethernet connections - (i live in a third world country)3. I have installed a TP-link Wifi router (WR841Nd). The modem on stand-alone basis is fairly decent, covers decent range on ground floor (my house is fairly big and is double story building) but with few dead spots. It supports N series so speed is quite good as long as one is within range.
Problemi have been living with it for couple of years but since recently i have been experiencing a lot of drop-outs/random disconnections and slow speed. I have tested my wifi router at friend's place and it showed no signs of problems so it has to be my ADSL modem (phone line is fine, though i am not close to exchange but that is not an issues as my neighbours are using the same phone line/ISP and they dont have an issue)another problem i have is the coverage, my current wifi only covers the ground floor and i would like to extend this to upper portione am looking to change my ISP provided ADSL modem. The problem is i dont know if i buy an ADSL modem off amazon and whether it would work or not because the setup is not straight forward and the ISP staff is corrupt. They dont provide with quality hardware neither do they have technical competence so i literally have to beg them at time to at least come and see the problem.Question1: ISP provided ADSL modem replacementi know the settings for ISP modem so i can search how i can replicate the same with Billion but can this work?Question2: RAnge ExtenderI am thinking of buying couple of powerline wireless extenders from netgear.
this had happened for a few months and i did not really mind until the disconnections worsen. usually when i power on the router and started using the internet, it will disconnect randomly once. my wireless SSID will disappear and lost connection. and no matter how i refresh the SSID still won't broadcast.
the only way to get back internet access is to re-power on the router, so the SSID will be broadcasted again.
my wrt54g2 V1 router had recently upgrade to the latest firmware version,1.0.04. but still disconnects as usual. however the disconnections only happens once, after u re-power on the router, you will not disconnect again.
but after turning off my laptop, and use it again after few hours, the same thing will happen again, a random disconnection and got to re-power on the router.
I have a 2 computer connected to the WRT54GS which is connected to the RCA DCM 425. It was initially fine, however now the internet is disconnecting at an absurd rate, at least 3 within an hr, sometimes more, and the only way it would reestablish connection is by unplugging and replugging.I have called time warner's customer support and they said it was because of the router. I have searched through various threads and saw and some had similar problems, but they were related to wireless instead of wired ( my case) so is there some settings i can change within the linksys to minimize the amount of disconnections? Becaused based on the log from the RCA,it seems that they are not reading each other too well. Are there any other routers that may establish a connection better than the GS?
View 4 Replies View RelatedI have installed 4 of these units in a commercial premises offering free wifi. Since the day they were installed (5Months ago) we had connectivity issues with mobile devices. This was somewhat resolved in the latest FW 1.0.04 but we are still having random disconnections on the units every 2 - 4 days and have to reboot the units. Lately the units have become unresponsive and reset themselves back to factory settings.
What we have done so far:
Changed router models - No change
Changed from Static IPs & DHCP - No change
Turned on isolation - No change
Performed a wifi analysis to pick the best channel for each unit - Slight signal gain but still disconnects
Changed to 20Mhz only (And all other variations) - No change
I think I am left with no option but to return these for some other brand. I'm really regretting buying these units at the minute...
Can threat detection provoke frequent disconnections on allowed traffic?We are using asa 5520 with 8.3.1 IOS For instance in ASDM we see SYN attack messages .The source ip address correspond to external an external host (in the outside interface) wich is allowed to connect to internal servers(in the internal interfaces).
Our threat conf is as follow:
threat-detection rate dos-drop rate-interval 600 average-rate 100 burst-rate 400
threat-detection rate dos-drop rate-interval 3600 average-rate 80 burst-rate 320
threat-detection rate bad-packet-drop rate-interval 600 average-rate 100 burst-rate 400
threat-detection rate bad-packet-drop rate-interval 3600 average-rate 80 burst-rate 320
threat-detection rate acl-drop rate-interval 600 average-rate 400 burst-rate 800
threat-detection rate acl-drop rate-interval 3600 average-rate 320 burst-rate 640
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we recently purchased a sg300-52. i was told i would need to setup a port trunk to connect it our main catalyst. However, i was able to connect a patch cable on the two devices and ping endpoint devices on both switches. I also noticed that the activity lights are constantly blinking. I'm not sure why. Is there something i can do to slow the activity light? it blicks constantly even in times of very low activity by the endpoint.
View 2 Replies View RelatedI am not good at networking. My friend wanted me to set up his home network.because the modem is unable to supply a good wireless connection to the rest of the household when the door is closed, a second router was needed.I set both routers to run with DHCP as they have many devices that needs to connect to the router for internet. However, a few hours after setting it up, my friend's pc as well as all devices connected to the second router faced issues. The router's interface showed that it does not have connection to the internet. they are still facing this problem until now.
View 7 Replies View RelatedI keep getting disconnect from the internet about every 10-15 minutes.I had a tech from cableone come over yesterday he installed all new wiring and a new modem.how can i tell if it's my computer that is the problem or if it's just a service i need to get rid of?
View 8 Replies View RelatedI currently live in a fairly-large apartment in Downtown San Francisco and as you can probably imagine, I have ALOT of interference with nearby residential and business wifi's, microwave's, cell-phones and all that jazz.
I currently have the ATT Elite DSL package, which is I believe the 6MBPS(?) package? Anyway, it's the $40 package and I want to say it's either the second or third up from the basic 19.95/month subscription. Here's my problem: ever since I moved into this building, I get signal drops on my ATT all the time--like at least once an hour if not more often. I had a technician check the wiring and he even replaced the router box (they always do) in hopes of improving the situation but so far, no dice.
I have tried switching to different channels after using scanning to see what channels other internet users nearby were using, but I did not see any improvement.The best solution I've been able to come up with is to set my router to be on 802.11B only. For the most part,I have not disconnected but I do feel a certain amount of slow-down or lag compared to my 802.11G settings.Now,I might be paranoid but it certainly does take a good amount of time longer to load up pages and such as compared to previously.The tech suggested I look towards getting an 802.11A/N router, but alas ATT does not support routers of that caliber...not sure why. It's been years and they're still stuck with the 2Wire 2701HG-B model for DSL.
About twice a week lately I'm having to reboot my router. All connections don't work. Logs captured don't show any time stamping so not as good as I was hoping but I do have some debug data:
View 1 Replies View RelatedMy router was working fine. Then 1 day I started having slow internet. My ping in games would jump up from ~60 to about 400-800. Did some troubleshooting with my ISP. Seemed like my modem was to blame. So I bought a Netgear one from BestBuy.
Everything was fine. Then 1 day the internet stated disconnecting. None of the computers could see the router in the wireless networks. I found the only way to solve the problem is to unplug the power and plug it back in. Strangely it seems to happen a lot late at night like around 11PM or 12 midnight EST.
Before with my old modem I just had automatic settings and DHCP. With the new modem it wouldn't work so I called DLink and the tech guy walked me through some steps, one of which was changing the ip address from 192.256.0.1 to 10.10.10.1. Whenever I reboot the router after a disconnect the computers say "there was an IP address conflict." Maybe this has something to do with it?
I saw in another topic someone said their router's time was wrong. Mine said it was 2010 so I updated it to automatically sync with ntp1.dlink.com and now it shows 2012. Let's see if it fixes now. My mom's laptop had a similar problem with Skype. For some reason the clock kept resetting to 2000 and Skype would not work (everything else did). When she resets the time to 2012 it starts working again.
Model E2000
Firmware: 1.0.04
Using 2.4 channels
All devices that are connected wireless through this access point have the difficulty of dropping internet momentarily. When ping from wireless devices to comcast.com with -t I get:
This happens about once every minute. Wireless connection itself does not drop just access to the web. Every single wireless device does the same thing including Ipad, ipod, mac and windows machines. Two machines that are directly wired into the router do not have this problem. Thier Ping status stay at around 60ms. Things I have tried:
adjusting MTU
Beacon interval in both faster and slower directions
Fragmentation threshold
RTS threshold
Made sure no other devices in range are on same channel
firmware updates
different security settings
changing SSID
This is causing streaming problems for both security cameras and client music.
I am constantly getting a few errors in my ASA 5510 and 5505 from the same IP. The IP of my NMS server, which has also stopped recieving SNMP data from these two VPNs.
Syslog Id: 713048 Error process payload: Payload ID: 1
Syslog ID: 713902 Removing peer from peer table failed. No Match.
Syslog ID: 713903 Error: Unable to remove PeertblEntry
I have tried to configure ACL to let traffic through. SNMP traffic to be more precise, but since I am fairly new to cisco firewalls and SNMP in general this has proven very difficult.
The setup is Windows 7 64 bit transferring a 10 GB file to a Linux Ubuntu distro. Both have 1Gb NICs and the Switch is also a 1Gb switch.
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