add and remove exceptions for launcher.exe and swtor.exe to antivirus and firewall to try and ensure they are not blocking the game.
then Grab www.pingplotter.com and set it graph to www.google.com , have this graphing and start the game and get it to graph while the lag occurs , then after that save that graph as a jpg image and insert it into a post here
Here you go. Not sure what it means though lol
It is showing a local network issue , as to the cause , if wireless at moment test with Ethernet cable and see if the same occurs.
I can see you have double nat for some reason , ordinarily 192.168.0.1 and 192.168.1.1 are 2 different private networks, however given the packet loss and ping spiking is at hop 1 , need to test if wireless strength issue first up
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