Hi, I'm new here, been searching all over the internet (from work) to find out what is wrong with my computer. I've come to learn more about computers than I ever thought I would need to know. Anyway, on 5/1/10, my desktop computer was working fine and I left it on sitting there alone for a couple of hours and when I got back to it it had gone black. I eventually managed to get it to start up but had lost the internet connection. I get the "limited or no connectivty". I cannot renew my IP address. I've tried everything. Looked at the event log for 5/1 the very first error at 2:16pm (when I was not at the computer) is TCP/IP has reached the security limit imposed on the number of concurrent TCP connect attempts". 2:18pm The SmartLinkService has reported an invalid current state 0. 2:25pm Application popup: Security Warning: Application cannot be executed. The file avwsc.exe is infected. Application popup: Security Warning: Application cannot be executed. The file wscntfy.exe is infected. Time??? The DHCP ClientService depends on the NetBIOS over Tcpip service which failed to start because of the following error: The device attached to the system is not functioning. Time??? The DNS Client Service depends on the TCP/IP Protocol Driver service which failed to start because of the following error: The device attached to the system is not functioning. So...I have since tried a lot of things. Doing cmd nbtstat -R givmes me this error: Failed to access NetBT driver--NetBT may not be loaded. In the device manager NetBios over Tcpip is not shown in Hidden Devices. I also did a FULL scan with Malware Bytes and it did find a lot of adware and trojan Fraudpack. I removed them but when I scanned again yesterday there were 5 adware and 2 infections, one of which was Fraudpack. Not too long ago I also had the internet security 2010 virus. I thought I had managed to get that removed from the computer. This was about a month ago. I'm running Windows XP Service Pack 3. I connect to the internet via cable modem, ethernet adapter connected directly from the modem to the computer. I am unable to download anything since I can't connect to the internet. Can you tell if my problems connecting to the internet are caused by an infection and if so, how do I remove the problem??? Thanks