I'm facing the exact same issue after trying out the free version. It detected some marlwares and asked it to be put under quarantine. I approved it. Then after a day i uninstalled malwarebytes from my system. From then on system acts very weird(slow etc.,) & the internet connectivity & speed has gone worse. The internet is fine in all other devices. So this has definitely to do with the recent installation & uninstallation of malwarebytes. Need a solution. I'm fed up for the past three days. I shall be attaching the report file as mentioned above in my next reply.