Because it uses the power lines for network connectivity. Works best if it doesn't need to cross breaker switches and such.

WiFi, especially the normal 2.4ghz type, is never going to be really reliable in terms of latency. There's too few channels, too many sources of interference and with multiple clients on the same network you'll get random delays.
If you have no other option than WiFi, get a router that has 5ghz support and only use the 5ghz for gaming.

• NA: Added donation tracker
  
• NA: Converted prices to dollars instead of scary+expensive European money.
  
• NA: Lowered prices
  
• All: Added per month statistics, showing the crazy growth :) EU vs NA

serveme.tf! :)

• All: Built an API, so other sites and programs can make reservations, lobby sites for example. Instructions on how to use in the README
  
• All: Allow multiple simultaneous reservations for donators again

• EU: Re-enabled the XenTF servers. Rebuilt/improved hardware, yay! They’ve had a namechange to “hopjb.eu” and there’s now 4 instead of 3!
  
• NA: Moved two extra servers to donator-only, to try and squeeze some dollars out of you yankees.
  
• All: Fixed the timezone offset in the timezone select dropdown.

gg!

• Donators can now upload new maps. These are automatically synced to all servers. For the EU system they're also instantly available for fast download when connecting to any of the servers, still need to fix a fast download for the NA servers.

Thanks for the great show both teams

• Added a dark theme, click the square in the top right to toggle.
  
• You can now end and extend your reservation from the server. Simply type !end to end, and !extend to...you guessed it, extend.

Mirelin, ever since he first picked up the medigun.

It's called "Max Amplification" in your Mumble preferences.

Hey, I run serveme.tf/na.serveme.tf, thanks for the shoutout in the guide. Starting to doubt if I should have AWS servers as backup for when all serveme servers are full now :)

Had to ditch the whole fast restart idea, too many different configs leaving settings around after such a restart. mp_highlander in your 6s reservation *brrrrr*. So back to full restarts and fully clean servers for every reservation.

On the bright side, 4 new NA servers by tragicservers.com \o\ /o/

Some new stuff:
- Four new servers for the NA system, all Chicago-based.
- Faster starting of a reservation. Instead of a full server reboot, it will first try to apply the reservation settings, if that fails (bad rcon, timeouts), switch to the old full server reboot. Should mean that your server is ready to go in about 10 seconds normally.
- You can pick ctf_turbine as first map again
- People that forget to end their reservation, will have auto-end forced on for their next reservation

- End of birthday-mode, donators are donators, non-donators are non-donators once again
- Switched hosting provider for the NA system to a more powerful system, thanks to tragicservers, naturally.
- Preparing to add some more servers, Chicago-based for NA, and UK-based for EU system.