Your win7 desktop may have security setting that slow your connection. Comcast tech support will bridge but wont change channels. You can easily bridge yourself buy entering the address of the WG in your browser. usually 10.0.0.1 with Comcast. Username admin/ pw- password. You can also manually change channels. Comcast has recently adopted a policy where they set channel selection to "automatic" exclusively. The reason for this is, in densely populated areas where networks overlap, a channel change is a temporary fix. That's because the moment the other networks sense a more efficient channel in their midst, they all switch to that channel and the problem is reborn. Comcast ships out like 20K self install kits a day! that doesn't include technician installs or people who pick up their equipment in stores. There are several warehouses that maintain an inventory of over 50K units. When you do the math, it's inevitable bad units are going to make their way to customers.