Problems with Disconnects
We at UC Hastings College of the Law in San Francisco are using Cisco Aironett 1231 APs and a Bluesocket solution. Some of our users experience wireless connection drops. These students say that they don't have any problems connecting anywhere else Here are the settings that we use on the radios World Mode is Disabled Preamble: Long Receive Antenna: Diversity External Antenna Configuration: Disabled Traffic Stream Metrics: Disabled Aironett Extensions: Enable Ethernet Encapsulation Transform: RFC1042 Reliable Multicast to WGB: disabled Beacon Period: 100 Max Data Retries: 32 Fragmentation Threshold: 2346 Data Beacon Rate (DTIM): 2 RTS Max. Retries: 32 RTS Threshold: 2347 We do a 3 channel overlay (Ch 1, 6, 11) Any suggestions or advice would be greatly appreciated Nick Nicholas Urrea IT Department UC Hastings College of the Law [EMAIL PROTECTED] x4718 ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Problems with Disconnects
Has anyone ruled out nearby ad hoc networks and such things? Often, clients will try to attach to nearby ad hoc networks before the infrastructure WLAN- can be a nuisance but is fairly easy to identify. Just one idea... Lee Lee H. Badman Network Engineer CWNA, CWSP Information Technology and Services Syracuse University 315.443.3003 [EMAIL PROTECTED] [EMAIL PROTECTED] 8/24/2006 11:53:30 AM We at UC Hastings College of the Law in San Francisco are using Cisco Aironett 1231 APs and a Bluesocket solution. Some of our users experience wireless connection drops. These students say that they don't have any problems connecting anywhere else Here are the settings that we use on the radios World Mode is Disabled Preamble: Long Receive Antenna: Diversity External Antenna Configuration: Disabled Traffic Stream Metrics: Disabled Aironett Extensions: Enable Ethernet Encapsulation Transform: RFC1042 Reliable Multicast to WGB: disabled Beacon Period: 100 Max Data Retries: 32 Fragmentation Threshold: 2346 Data Beacon Rate (DTIM): 2 RTS Max. Retries: 32 RTS Threshold: 2347 We do a 3 channel overlay (Ch 1, 6, 11) Any suggestions or advice would be greatly appreciated Nick Nicholas Urrea IT Department UC Hastings College of the Law [EMAIL PROTECTED] x4718 ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Problems with Disconnects
Is it a wireless drop, or problems connecting. There is the limit on the number of associated users. If you reach that limit, then folks have problems connecting. Forget the limits, but it is not users logged in, but associated. On Thu, 24 Aug 2006, Urrea, Nick wrote: We at UC Hastings College of the Law in San Francisco are using Cisco Aironett 1231 APs and a Bluesocket solution. Some of our users experience wireless connection drops. These students say that they don't have any problems connecting anywhere else Here are the settings that we use on the radios World Mode is Disabled Preamble: Long Receive Antenna: Diversity External Antenna Configuration: Disabled Traffic Stream Metrics: Disabled Aironett Extensions: Enable Ethernet Encapsulation Transform: RFC1042 Reliable Multicast to WGB: disabled Beacon Period: 100 Max Data Retries: 32 Fragmentation Threshold: 2346 Data Beacon Rate (DTIM): 2 RTS Max. Retries: 32 RTS Threshold: 2347 We do a 3 channel overlay (Ch 1, 6, 11) Any suggestions or advice would be greatly appreciated Nick Nicholas Urrea IT Department UC Hastings College of the Law [EMAIL PROTECTED] x4718 ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. -- Walter Reynolds University of Michigan ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
RE: [WIRELESS-LAN] Problems with Disconnects
We were experiencing very similar behavior here at Bradley. One thing we tracked the problem to was with a known bug in the Intel 2200 and 2915 adapters. See http://support.intel.com/support/wireless/wlan/sb/cs-022509.htm for more info. Ron Robinson [EMAIL PROTECTED] -Original Message- From: Urrea, Nick [mailto:[EMAIL PROTECTED] Sent: Thursday, August 24, 2006 10:54 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Problems with Disconnects We at UC Hastings College of the Law in San Francisco are using Cisco Aironett 1231 APs and a Bluesocket solution. Some of our users experience wireless connection drops. These students say that they don't have any problems connecting anywhere else Here are the settings that we use on the radios World Mode is Disabled Preamble: Long Receive Antenna: Diversity External Antenna Configuration: Disabled Traffic Stream Metrics: Disabled Aironett Extensions: Enable Ethernet Encapsulation Transform: RFC1042 Reliable Multicast to WGB: disabled Beacon Period: 100 Max Data Retries: 32 Fragmentation Threshold: 2346 Data Beacon Rate (DTIM): 2 RTS Max. Retries: 32 RTS Threshold: 2347 We do a 3 channel overlay (Ch 1, 6, 11) Any suggestions or advice would be greatly appreciated Nick Nicholas Urrea IT Department UC Hastings College of the Law [EMAIL PROTECTED] x4718 ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Problems with Disconnects
Nick, What type of card are they using. It might be a chipset issue. A couple of years back, we had issues with the Aironets telling cards on wireless carts around the hospital to re-associate to another AP. The best thing to do, is to sniff the traffic in the airwaves. Or look at the logs, if they are available, to see when that particular client/MAC lost its connection. There you should find a brief description as to why the connection dropped. This is probably on of the hardest things to verify because by the time you make it down to the location, the user is FINE. Thanks. Jorge Bodden Urrea, Nick wrote: We at UC Hastings College of the Law in San Francisco are using Cisco Aironett 1231 APs and a Bluesocket solution. Some of our users experience wireless connection drops. These students say that they don't have any problems connecting anywhere else Here are the settings that we use on the radios World Mode is Disabled Preamble: Long Receive Antenna: Diversity External Antenna Configuration: Disabled Traffic Stream Metrics: Disabled Aironett Extensions: Enable Ethernet Encapsulation Transform: RFC1042 Reliable Multicast to WGB: disabled Beacon Period: 100 Max Data Retries: 32 Fragmentation Threshold: 2346 Data Beacon Rate (DTIM): 2 RTS Max. Retries: 32 RTS Threshold: 2347 We do a 3 channel overlay (Ch 1, 6, 11) Any suggestions or advice would be greatly appreciated Nick Nicholas Urrea IT Department UC Hastings College of the Law [EMAIL PROTECTED] x4718 ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. This electronic message is intended to be for the use only of the named recipient, and may contain information that is confidential or privileged. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or use of the contents of this message is strictly prohibited. If you have received this message in error or are not the named recipient, please notify us immediately by contacting the sender at the electronic mail address noted above, and delete and destroy all copies of this message. Thank you. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
