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About SchoolITMan
SchoolITMan
Here to help
Member since Oct 21, 2020
Dec 8 2022
Community Record
11
Posts
3
Kudos
1
Solution
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Dec 8 2022
6:23 AM
99% of our units are MR42. We also have 1 MR56 and several outdoor model MR70s.
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Dec 7 2022
1:19 PM
Rolling back firmware fixed the issue. Cisco acknowledged the firmware issue. We are firmware locked and have not yet upgraded firmware since then, but plan to soon.
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Sep 14 2021
7:17 AM
@ Network-dad That only shows the MX uptime, not the switches or APs.
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Nov 11 2020
8:23 AM
2 Kudos
Just thought I'd post an update here as the issues SEEM to be fixed... SOLUTION: We rolled back a firmware update from 27.5.1 to 26.6.1. This fixed the authentication and speed issues. We enabled QA on all VOIP and Video, and changed our Zoom DSCP tags to be standard so that QA would recognize them. (By default, Zoom is NOT set to 46/34 !) We changed the radio profile settings from 20 power, 11 min bitrate on 2.4ghz and on 5ghz from 30 power, 24 min bitrate, and 40 chan width, to 22 power, 12 min bitrate, and 20 chan width. This fixed the signal overlap, AP hopping, and some of the interference. We also had students disable hotspots on their iPhones, which they were doing because of the WIFI issues, but which was helping them connect, but was causing interference that was only making the issues worse. RESULTS: So far, since the changes, we have had no further complaints of WIFI or zoom dropping issues, despite the fact that our usage increased 2x since then.
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Oct 28 2020
6:40 AM
Yes, zoom is our new top app. Previously it was gmail / google classroom / google drive with a little youtube or Vimeo. Now it is all of the above PLUS 40-45 faculty zooming all day. And that doesn't even count students.
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Oct 27 2020
11:39 AM
1 Kudo
Building 1 has about 400 students and 85 Faculty/staff in about 43 rooms or avg 11.3 people per room,using about 32 APs, but only about 2-10 people per room using WIFI regularly. The building footprint is 1 story and very spread out in long hallways due to multiple phase construction since over the last 75 years. Building 2 has about 350 students and 55 faculty and staff in 26 rooms or avg 15.5 persons per room, using 24 APs, but they are ALL using WIFI. The building is 10 years old and the footprint is square and 2 story. Note that for both building these are just averages. Students "migrate" from one end to the other for classes. Clients per AP can exceed 50 or 60 and we have an AP in every other room. Problems exist on both staff & student SSIDs, however, they affect them differently. Student WIFI issues are rare, and kick everyone in 1 or 2 classrooms off at once. Staff WIFI issues are more common, often repetitive throughout the day, and affect only a subset of the teachers. Clear as mud? :>\
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Oct 26 2020
8:42 AM
Not sure. About that time (give or take a week or two), we: We added several new MR70 outdoor WIFI units (only 1 at the affected campus) We were having issues with our MX250, and we upgraded the firmware on the MX, the Switches and the APs. We were having issues with live streaming at football games, so we re-tagged all the switches for SSID availability. We had multiple storms/ power outages Temporarily increase utilization (which has since gone back to normal, but problems haven't) Thanks.
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Oct 26 2020
6:20 AM
@ Ajitkumar Yes, per the OP, we just downgraded from 27.5.1 in troubleshooting this problem. It was actually worse on 27.5.1. @ cmr Yes, student and classroom density is higher in this building than in the other. As is general usage. But this was working fine for years until Sept 28th. No new businesses or construction near us, we own most of the land around us. I can't imagine that interference got this much worse all of a sudden. What else would cause repeated Authentication issues?
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Oct 23 2020
10:47 AM
I've looked at the RF Spectrum, and it definitely does NOT look clean, but it doesn't look any different for "problem APs" as it does for those APs that are not having any issues. The interfering APs are all under -75db and under -85db on the same 5hgz channel. Same channel utilization is only 15% current and avg.
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Oct 23 2020
9:29 AM
We are having issues with teachers or students dropping off WIFI several times a day. This inevitably happens in the middle of a Zoom class and is effectively hobbling our ability to do distance learning. We are a mixed show with roughly 20% Windows PCs and 80% Macbook Air laptops. We have a full Meraki network, using an MX250 firewall, MS250 Core switch, and a few dozen MS120 48 port switches. The switches are on firmware 12.28 Our WIFI APs are MR42 units indoors and MR70 units outdoors. The APs are on firmware 26.8.1 (recently downgraded from 27.5) We have 2 buildings, on the same network, connected by fiber. Only one of the buildings is experiencing issues. The Students are on an SSID with WPA2-PSK. The Faculty and Staff are on a separate SSID that is using WPA2-Enterprise with Meraki RADUIS. (Using the built-in user auth, not AD) Our logs are full of disassociation and authentication errors. Our APs wireless health shows stats like 54% of clients unable to connect. 46% of authentication failed. Drilling down shows mostly things like: "Client failed during the authentication step.type='WPA-PSK auth fail' associated='false' radio='1' vap='2'" "Client failed 802.1X authentication to the RADIUS server.type='802.1X auth fail' num_eap='8' first_time='0.018824960' associated='false' radio='1' vap='8'" "Client failed 802.1X authentication to the RADIUS server.type='802.1X auth fail' num_eap='13' first_time='0.049299200' associated='false' radio='1' vap='1'" "Client attempted to associate 46 times on the 5 GHz band.type='Association attempts' num='46' associated='false' radio='1' vap='8'" "Client attempted to associate 179 times on the 5 GHz band.type='Association attempts' num='179' associated='true' radio='1' vap='1'" But no-one is typing in a password here. These are saved credentials. And 300+ people cant all have suddenly developed corrupt keychain entries on their Macbooks. Can anyone tell me what is going on here?
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Oct 21 2020
11:54 AM
10/21/2020: We are having this same issue with repeated authentication issues on our network. We are using MR42 APs and MS120 Switches. The issue has been happening for approximately 5 weeks - about the time that we updated firmware to MR 27.5 Oddly, this is happening in only 1 of 2 buildings on the same network, with the same equipment, with the same radio profiles, broadcasting the mostly same SSIDs. And while it is happening to everyone sporadically, it is happening much more often (several times daily) to 2 groups of teachers & their students in two different corners of the school on 4 different APs and 2 different SSIDs, with different authentication between teachers & students. (Students are WPA2-PSK and Teachers are 802.1X with Meraki RADIUS) Also, our Meraki cloud access seems to be getting slower and slower...
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My Accepted Solutions
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| 18300 | Nov 11 2020 8:23 AM |
My Top Kudoed Posts
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