The SSID that fails is being broadcast. The issue persists across all APs and across WiSMs and even across 6506 switches (the ones with the WiSMs). Will look for a different NIC driver -- pretty sure they are running the latest version, will try for a level or two back. All tablets have the same drivers -- the 45 that are good and the 5 that are bad.
-jcw ------------------------------------- John Watters UA: OIT 205-348-3992 -----Original Message----- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Patrick Goggins Sent: Tuesday, September 28, 2010 6:52 AM To: [email protected] Subject: Re: [WIRELESS-LAN] Mysterious Missing ARP Entry Is the particular ssid being broadcast? Try a different wireless driver on the tablets. Are the tablets showing the issue across all ap's or just a specific model? ~Patrick On Sep 27, 2010, at 4:40 PM, "Watters, John" <[email protected]<mailto:[email protected]>> wrote: I need some help with a strange new problem - a persistent missing ARP entry. We are a Cisco shop running WiSMs (6.0.199.4) with a mix of 1142s, 1131's and a few older 1242 APs. This past Friday we got a report of 5 XP tablets that could not use the wireless network. These are 5 out of a group of 50 handheld tablets used in our hospital by the doctors for charting, etc. All of these are imaged and should be using the same image (and later reimaged to be sure). It turns out that that these five machines can use every SSID on campus except for one - their special one which uses WEP (no flames about WPA; we have tried to get them to move, but they are doctors and know more than anyone else). Further investigation has shown that these five machines never get an ARP entry built for their default gateway. They can talk to other machines on their subnet, but nothing outside. When a manual ARP entry is built for them, they are fine. This problem has persisted across reboots and reimaging of these five machines. Today we have received reports of other machines on campus who have similar symptoms (we have yet to actually see one of them). They lose connectivity on one SSID but are OK on all others. Has anyone else seen this? Can you give me a clue what to look for? Along with the MAC address strangeness, which we are seeing, this problem has made for a very interesting few days. Thanks for any help you can offer. -jcw <image002.jpg> ------------------------------------------------------------ John Watters The University of Alabama: OIT 205-348-3992 ********** 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/.
