What is the best way to access a congested website?
Today, elective subjects are chosen via an online site. Since places for certain subjects are limited, there will be a huge rush. (= it's difficult to access the website.)
How can I increase my chances of getting my desired subject? Fast internet? Powerful PC? Using multiple devices simultaneously?
It should be fast enough, but that’s not the bottleneck.
See above.
Or several browsers on the same device, comes out on the same. Probably the only approach that allows you to tick out better chances on client side.
It would probably be a bit more effective not to have the same source IP address (as would be the same for two PCs in the same household, at the same DSL port).