After several hours, Firefox, Chrome, VPN will not connect with internet, Edge has no problem. Restart clears problem, for a few hours. Have disable Malwarebytes, no help. All updates done. ffc scannow-no help. No error messages from any program. Have deleted recent installations of programs.
OS win 10-build 18363 X-64 on Dell Inspiron 660, 8GB ram. Task manager shows low CPU and Memory.
Thanks for help.