rlapno,
You can check Trend Micro's Firewall settings but I don't think it should be a problem. This is for printers but should get you in the area of the firewall Allow a printer past Trend Micro
I like channel 11, but channels 1, 6 or 11 work best for most wireless devices.
Go to Drivers & Downloads enter your service tag number, then select your operating system. Under Network, download and install the latest drivers.
Try these tweaks....
Start, control panel, device manager. Click on Network and then right click on your wireless adapter, left click properties, power management. Uncheck the box, allow computer to turn off this device to save power.
Click on advanced, look for antenna diversity. Change the antenna diversity from Auto to Aux.
Go to start > device manager > advanced > bandwidth capability > change to 20/40mhz
Go to the power options, and changed the Wireless Adapter Setting, from Maximum Power Setting to Maximum Performance.
Rick