David, others Thanks to all of you that have responded.
I have checked the health and that is good for the Apple devices. The SNR values of 20 or even lower are much more concerning for me. I have seen others suggest that I need to make sure that neighboring AP’s are on their own frequency. I think they are, but I will have to double check. So it makes me wonder what else might be broadcasting in the environment that might be playing a role with interference. I also need to look at the SNR of the PC’s to compare. I have not looked at retry frames. That is a really good idea since some are complaining about zoom sessions remaining reliable over wifi. Tim *From:* The EDUCAUSE Wireless Issues Community Group Listserv [mailto: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *David Logan *Sent:* Friday, June 4, 2021 9:50 AM *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU *Subject:* Re: [WIRELESS-LAN] Apple product antenna strength vs other? Tim - Have you examined the performance data the AP collects about each client connection which is stored in the Mobility Conductor (fka MM)? What does the Client Health metric tell you about each device? Are you aware of the CLI commands you can execute on the MM/AP to look at VERY detailed client connectivity characteristics? Don't remember the exact syntax, but it's in the neighborhood of ap debug client table and ap debug client stats. For example, you can pull debug stats on the Apple devices that will show how many packets Tx/Rx at specific WiFi data rates that the AP supports. You can look at retry frames. etc. -- David On Fri, Jun 4, 2021 at 10:18 AM Tim Tyler <ty...@beloit.edu> wrote: Wifi experts, We are running Aruba MM with two controllers on 8.7.3. Our AP’s are mostly AP-225’s. I have had complaints from one of our tech rooms that they were getting a poor signal. I finally got around to testing that room out. The location of the AP to this room is in an adjacent room. When I test with Windows PC’s and Droid phones, the signal and performance is just fine. When we tested with Macs and iphones, the signal strength was amazingly weak for all of them. We tested with two Macs and two iphones as well as multiple PC’s and Android phones. Only the Apple devices had weak signals. Have any of you experienced a weaker antenna performance with your Apple devices on your campuses? If I put an AP in the room, the Apple devices are fine. But I am surprised I would have to do this. I would not have expected Apple devices to have weaker antennas. I did check in Airwave to make sure at least one of the Macs was still connecting to the same AP. Any thoughts from anyone? Tim Tyler Network Engineer Beloit College ********** 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 ********** 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
