Hi Nordinio, we experience an outage as of 1/25/22.  The several times I contacted Meraki they did not indicate an outage, although our SSID that authenticates against our NPS server stopped working since then.  Our PSK SSIDs were not affected.  I found the post below that finally solved our problem  Not sure where the MTU size was change, the provider or whatever.  On the post they had Meraki change the MTU size to lower than 1500.  I went our NPS server and changed our network policy (Settings tab) and under Standard added Frame-MTU and set it to 1344 and that resolved our problem.  I'll adjust that amount up later to see how high I will still work but it got this going again.  I hope this helps someone.  Thank you.   https://community.meraki.com/t5/Wireless-LAN/802-1X-EAP-failure-with-Windows-AD-Radius-Help/td-p/31934 ... View more

Thank you so much Berlin_IT_Guy.  That fixed our problem.  I did not call Meraki to change the MTU.  I added the Frame-MTU attribute on the NPS server under the settings tab of our network policy and set it to 1344.  I'll adjust that later but our wireless network is finally up.  Thank you! ... View more

Thank you for the reply back Mizerka.  Actually after I reduced the MTU size as indicated by Berlin_IT_Guy it not only resolved the connection problem but also fixed the Test button failing.  By the way, we did not call Meraki to change the MTU size.  Instead I changed the network policy on our NPS server on the Settings tab under Standard.  I added the Frame-MTU attribute and set it to 1344. That got everything working again.  I'll gradually increase it to see how high I can set it but so glad the wireless is working again after trying many things for several days.  Thank you all! ... View more

Thank you for the post Mizerka. I'm new to certs, our test button does not work.  How do you make the cert allow communication with Meraki securely? ... View more