Not a cisco customer, but: - when the client sends 802.11 frames after receiving an IP, are you seeing 802.11 ACKs from the AP? - if yes, are you seeing the client's traffic arrive at the controller? - is bcast traffic passing but not mcast?
With these anomalous problems, packet captures/sniffs are very revealing. The ARP mentions remind me of a time wherein symptoms were similar - IP received but no further traffic. As it turned out, the device was ARPing for addresses outside it's subnet. The reason was that the client erroneously set an incorrect mask, causing the ARPs. Another example where pcaps uncovered the problem. =========== Ryan Holland (sent while mobile) On Apr 15, 2011, at 6:17 PM, "Lay, Daniel" <dl...@samford.edu<mailto:dl...@samford.edu>> wrote: I have run into a very odd issue. We have received complaints from students that they are having wireless issues in specific dorm areas. After receiving such a report I went to investigate, I walked the entire dorm connecting to each AP with several devices(an iphone, an Ipad, a XOOM tablet, and a laptop) and everything worked exactly as it was supposed to. The next morning as I was sharing my findings with the helpdesk guys 2 students walked in, and as luck would have it they were from the same dorm that I had just verified the evening before. So we went back to the dorm to look at it from their device So now we are back at the dorm looking at a student’s Mac Book Pro. When the student is anywhere else on campus it works just fine on wireless with any SSID. In his room however we cannot Tx/Rx to the network or to internet. One strange thing to note here is that while his machine could not Transmit or receive data it did get an IP address from DHCP. I was also able to connect to the same AP with my IPAD and XOOM and then open Wireless Control System and look back at the students machine. I wiped his connection and started from the beginning only to arrive at the same result. I then moved his system to another location and reset his connections. I moved back to his room and it still would not function. I reset the AP and then it started working. I would say well it comes down to a simple reset but having several connections that are working fine and several connections that are not working all on the same AP is concerning. I have about 3 locations on campus that are experiencing this same behavior. I have rebooted them but it still seems to be having the same problem. We are using Cisco 1130 AP’s with both A and B/G radios on They are connected to 4404’s that are running 6.0.199.4 code All are connected to a WCS running on a virtual machine with software version 7.0.164.3 ________________________________ Spam<https://antispam.osu.edu/b.php?i=1184572273&m=8af581b82bc9&c=s> Not spam<https://antispam.osu.edu/b.php?i=1184572273&m=8af581b82bc9&c=n> Forget previous vote<https://antispam.osu.edu/b.php?i=1184572273&m=8af581b82bc9&c=f> ********** 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/.
