Lost network during use and re authenticated identity

[cangqingse]

During network usage, there was a sudden network outage and a request for re authentication was made. After authentication, the user can access the internet normally and check the logs. The following prompt is displayed. May I ask why?

2023-04-20T02:49:49+08:00 zbj C-SESSMGR[390]: [Thu Apr 20 2023 02:49:49:647][CP][C-SESSMGR][ERR][FID=1,apMac=F0:B0:52:20:24:B0,apIp=188.240.30.172,ueMac=A8:8F:D9:3A:3C:5A,ueIp=6.11.31.172,TID=318756608][memcached_wrapper.c:2110]#012MWL_RemoveEntry_StrKey - Delete Failed for the key:IUTBL_liying, Reason: Code (16)- NOT FOUND

[cangqingse]

This is the following log

2023-04-20T03:24:47+08:00 zbj Core: @@206,clientAuthorization,"apMac"="38:45:3b:1a:57:90","clientMac"="a8:8f:d9:3a:3c:5a","ssid"="ZBJ-6F","bssid"="38:45:3b:da:57:9c","userId"="","wlanId"="26","iface"="wlan35","tenantUUID"="839f87c6-d116-497e-afce-aa8157abd30c","apName"="RuckusAP","clientIP"="172.31.11.6","userName"="liying","vlanId"="380","radio"="a/n/ac","encryption"="None","fwVersion"="3.6.2.0.695","model"="R720","wlanGroupUUID"="4a8de8b0-2f1b-11ed-8000-c2df853357c1","zoneUUID"="d477083a-1471-46bd-a068-76b399c920bd","zoneName"="zbj","timeZone"="UTC+0","apLocation"="","apGps"="","apIpAddress"="172.30.240.48","apIpv6Address"="","apGroupUUID"="bee14e47-e65a-42ed-9ce1-6d4dd34ece70","domainId"="0fe4684c-e9b4-4735-84ef-43116e67538f","idealEventVersion"="3.5.1","apDescription"=""

[sanjay_kumar]

Hi @cangqingse 

From the logs, it looks like a server timeout.

Are you using DPSK or Group DPSK on this setup where the issue occurred?
Did this happen to all the clients or specific to any model like Android, Apple etc?

[cangqingse]

hi @sanjay_kumar 
    I didn't understand the meaning of DPSK, I can only take screenshots to help take a look
   What appears more frequently is Apple