Windows 11 Gateway error

Hi All

  I would like to share and get support from you, in my company is have mix notebook brand ( Dell, HP, lenovo )  our network is provide DHCP IPv4 to user, and we not provide admin permission to user, since FEB 2025 we got many incident  about  user can not connect internet both when they at office or they work from their home, first I investigate issue  we got these information is

in office ==> user connect wifi at office but on default gateway is set to "192.168.1.1 or 192.168.0.1"( there  home internet ) we sure that user note have permission to static gateway but other like IP address and DNS server is got correct information from DHCP Server 

in their home ==> user report can not connect internet on their home wifi , we found their computer is static gateway to 10.2.x.254 ( that is gateway of our office network ) but other set thing like IP address , DNS server is get ip address from their local router

for work around we used local admin permission to run "ipconfig /release" ,"ipconfig /renew" is fix issue, but I need to know why it happend. I already check GPO and registry , it not have any static ip address setting, but one thing that I found more 90% of computer that got these issue is inplace upgrade from windows 10 to windows 11

so anyone found same these problem, and are you know a root cause of these would like your support to share to me