The powerline adapters (for ethernet over electrical wiring) worked great. I got nearly 150 Mbps on 200 Mbps adapters, which means the connection is very strong
Definitely upgrading to some gigabit speed adapters for the downstairs media equipment
If anyone wants the 200 Mpbs adapters to use or for testing purposes, I will gladly pass them along to a fellow forum member. You can pass along your thanks to Mr. Scott who sent them to me
