8.10.121.0 is a deferred code. There are two major bugs you should be aware of:
CSCvt47413 IW-6300H/1562/2800/3800/4800 series APs are failing DFS compliance CSCvt98797 Channel Availability Check (CAC) is skipped after channel change on 2800/3800/4800/1560/IW6300 Hector Rios, Wireless Network Architect The University of Texas at Austin From: The EDUCAUSE Wireless Issues Community Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> On Behalf Of Tariq Adnan Sent: Thursday, July 23, 2020 9:18 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Cisco 3800 AP code 8.10 wireless disconnections/drops Hello everyone, Just checking if anyone else is experiencing the wireless disconnection issues like us. So far we have received complaints from multiple sites where we have deployed 3800 model AP on 8.10.121.0. The 3800 on a different controller running code 8.5.161.4 seems to have no issue so far. The drop outs are very random and sometime would happen in the middle of a zoom meeting - very frustrating for students during lecture. I have raised a TAC case and we couldn't reproduce the issue during 1.5 hours troubleshooting session. I am suspecting below bug but unless we recreate the issue and take some logs, Cisco won't recommend any workaround or code upgrade: CSCvt22353<https://protect-au.mimecast.com/s/v4EjCL7EwMf43ozMc11Fat?domain=tools.cisco.com> 2800/3800/4800/1560 APs not sending DHCP messages over the air >From bug details: "From AP debugs and OTA captures, we can see some traffic exchange, but at some point AP stops transmitting data frames over the air (could be DHCP, or ICMP, or other data traffic), affecting all clients connected at that time." Thanks, - Cheers, Kind regards, This message is from an external sender. Learn more about why this matters.<https://ut.service-now.com/sp?id=kb_article&number=KB0011401> ********** Replies to EDUCAUSE Community Group emails are sent to the entire community list. If you want to reply only to the person who sent the message, copy and paste their email address and forward the email reply. Additional participation and subscription information can be found at https://www.educause.edu/community ********** Replies to EDUCAUSE Community Group emails are sent to the entire community list. If you want to reply only to the person who sent the message, copy and paste their email address and forward the email reply. Additional participation and subscription information can be found at https://www.educause.edu/community
