I just got a new router, and its been working fine, except for some reason at night it seems to slow to a crawl for no apparent reason. I am pretty sure it isn't my ISP because this issue has never cropped up with the old router, and rebooting the new one seems to help. However checking my routers logs I have noticed that a Chinese IP address has been attempting to access my router on multiple ports for over 18 hours now. The log indicates the blocked attempts are about 3 seconds apart, and all coming from IPs in the 221.192.*.* range. There are over 800 log entries on my router about this now. As far as I am aware the router is blocking the attempts, but I'm not 100% sure. Now I'm not sure if the events are related, but I'm assuming this shouldn't be common. I know cyber crime from China is on the rise, but what concerns should I have and what steps can I take to protect myself?