issue resolved after uninstalling the router update. some users were able to connect using their mobile hotspot and then change to home wifi. issue was intermittent and definately it was related to last router update

Faulting application name: cscan.exe, version: 4.10.5111.0, time stamp: 0x629923fdFaulting module name: libwalocal.dll_unloaded, version: 2022.5.10.2, time stamp: 0x627a105fException code: 0xc0000005Fault offset: 0x00069e72Faulting process id: 0x1710...