What channels are the impacted AP’s running on? A few weeks ago I had a similar issue (Cisco wireless), My Mac laptop would attach to our WPA2 network no problem – auth was successful (5 GHz), but would never get an IP. If I walked the Mac laptop (running Catalina) into rage of another AP (also 5GHz), it worked perfectly. Same switch, same AP type, with the only difference being the channel the AP was on. I could replicate this in another area, where a user reported a similar issue. I don’t have my notes in front of me, but I believe the problematic AP’s were on unni-3 channels, and the ones that were OK, were not. With COVID, students remote, and work from home, I’ve not had time to go back in to the campus and really drill into it.
There had been no reported problems when our campus closed in March, and no changes to our wireless deployment since that date. Jeff From: The EDUCAUSE Wireless Issues Community Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> On Behalf Of Barros, Jacob Sent: Tuesday, October 06, 2020 12:25 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Mac wireless issue We are seeing oddities with macbooks as well. Our experience is similar both in scope and behavior, however, I am a Ruckus customer. Any Cisco or Meraki users with the same issue? [https://lh6.googleusercontent.com/ne_lTqgFJdoXUoU7gASzv0xOtDuEXE2aaf5NZNvmQ2e_NgyV_DSK_fBjBsHc5NeluIdDut6CDq9B7cQn3WHBZgFO5U9IyPePBYnuLPQ27XRP9oq2Snrkz_l8X0iU-z242JWJVv4Z]<https://www.grace.edu/> Jacob Barros Associate Director of IT, Network and Operations / Information Security Officer | Office of Information Technology E: barro...@grace.edu<mailto:barro...@grace.edu> | W: 574.372.5100 ext. 6178 [https://lh5.googleusercontent.com/7qgaEy3R8t0pg6-FqBft4irBB3Tn07-iqWUmhV6zOMpEbI5uO8cZ-QGJaLvBqImKUw5TiHuVJNKO7jpbZJvnqIDHN1iXBMJRLUHfWS2DWYy_oyi4x1cp3kP8s3fz-xsskqXr4Ram]<https://www.grace.edu/> On Tue, Oct 6, 2020 at 3:04 PM Stacey Frye <sfry...@manhattan.edu<mailto:sfry...@manhattan.edu>> wrote: Greetings, We are seeing a weird issue on our campus and hoping some of you may give us some ideas to check on. Background: We are using Aruba wireless controllers/APs (sadly, no airwave). All buildings are using the same VLAN ID for the wireless subnet, but each building has their own subnet for wireless. All APs are configured in the same AP-group. We have an open wireless network and not using any NAT (public IPs are being given out). IPv4 only. A lot of our Mac users, though not all, when trying to connect to wireless, they are able to connect to the AP, but are receiving a "No IP Address" message, and therefore cannot access the Internet. Once they leave this building and go to any other building on campus, they do not have an issue whatsoever. We have tried to manually configure the IP address, but still the device is unable to access the Internet (cannot even ping the GW). After removing the Wi-Fi option in Network Preferences and then re-adding, the device is able to get an IP from DHCP server, but is still unable to pass any traffic. We have tried rebooting the laptop, completely removing wireless network and reconnecting, and have tried booting in safe mode. Nothing seems to be working. If we connect using an ethernet cable in the same building that we're having wifi trouble in, it works with no problem. Config for the wireless subnet in the affected building is the exact same as config in all other buildings (except the subnet, of course). All buildings are using the same DHCP server. This seems to only be happening with Macs, not any Windows machines that I am aware of, nor do we have any problems with other Apple devices. And like I said, some Macs are having the issue, others are not. We only started seeing these problems within the last 2-3 weeks. The only difference we made in the affected building is giving it a larger subnet over the summer. We are working with our Aruba SE who is reaching out to TAC for us, but wanted to reach out to you guys for any other possible insight or ideas. Thanks in advance! Respectfully, Stacey Frye Network Engineer Office of Information Technology Services (ITS) [http://home.manhattan.edu/collegerelations/email_logo.jpg] Riverdale, NY 10471 Phone: 718-862-7499 sfry...@manhattan.edu<mailto:name.n...@manhattan.edu> www.manhattan.edu<http://www.manhattan.edu/> ********** 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
