I don't know if this relates but because I didn't change any settings to my hardware, or software and this started occurring just recently. I notice entries in my log like this:
[INFO] Fri Nov 19 09:35:15 2010 Blocked incoming TCP packet from 218.92.13.158:3389 to [My WAN IP]:35640 as SYN:ACK received but there is no active connection
[INFO] Fri Nov 19 09:30:40 2010 Blocked incoming TCP connection request from 81.10.28.114:50950 to [My WAN IP]:445
When I whois those IP addresses I get: (WTF.... are these chinese hackers ... and can they cause my connection to drop?)
[Querying whois.apnic.net]
[whois.apnic.net]
% [whois.apnic.net node-2]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
inetnum: 218.92.13.156 - 218.92.13.159
netname: LIANYUNGANG-DH-HAOYUNLAI-NETBAR
descr: donghai haoyunlai netbar
descr: Lianyungang City
descr: Jiangsu Province
country: CN
admin-c: CH451-AP
tech-c: XKY4-AP
changed:
[email protected] 20061117
status: ASSIGNED NON-PORTABLE
mnt-by: MAINT-CHINANET-JS
mnt-lower: MAINT-CHINANET-JS-LYG
source: APNIC