start with basics:
- install
iperf
on every device you can between an external device and your internal host(s) and use it to find any bottlenecks - use tools like
tcpdump
to analyze packets flowing over the network. you can often find surprising results this way - start with a simple test best (again,
iperf
) with the most simple config (no nginx etc) and add the complexity of your config bit by bit until the issue returns
20 years? more like 5