Thank you for starting this topic,
I can add more info I've sent the following to the support desk and have been assigned a ticket but haven't had an update since.
I can tell you the issue still exists in the latest beta version and for now (yes believe it or not) i'm turning Start Malware bytes with windows off and quit malwarebytes if it does load. Good Luck all.
Since early in January 2020 following an update to Malwarebytes I've been troubleshooting network connectivity issues,
With Malwarebytes unloaded I have no issues with swapping from one wifi network to another, I've not done any testing switching from WIFI to LAN - yet! I have seen a number of similar reports in the support forum and wanted to share my experiences :-
The problem I have been having is disruption with WIFI connectivity swapping to different networks where the WIFI card is effectively disable and trying to reboot the computer produces a BSOD of "Driver Power State Failure".
With Malwarebytes unloaded no issues are present.
With Malwarebytes loaded and all protection engines OFF results are no issues,
With Malware Protection, Ransomware Protection and Exploit Protection ON - no issues.
With all Protection enabled - the problems exists
With just Web Protection and Exploit Protection ON - I cannot swap from one WIFI network to another without having to shutdown and restart the computer, unloading Malwarebytes will not allow the adaptor to be used.
Running Windows Network Diagnostics results with "No issues found" but looking into the log further gives :-
Detailed root cause:
The wireless network is on denied list (Administrative via Group Policy)
Even thou it's a personal laptop not connected to a domain or workgroup - there is NO Group or Security Policy being applied from Windows.
I hope this helps with your troubleshooting and can provide more information and test if required.
Thanks for your time,