This is a wireless router built for medium to large homes, so it can replace your current router, and give you possibly better coverage.
but if you have an extra large home, or additional obstructions in your home that impede wifi reception,
you might want to look at getting a type of "mesh" network, that has several wifi devices that work together to supply reliable coverage
in more areas at extended ranges

if you are talking about wifi, the answer is yes,
as each channel supports 32users with a total user count of 64

If the minimum system requirements are the same for Alphja 17, as the original 7 days to die, then it should run fine.

Once the purchase of the select, eligible product for the associated incentive program has been made, it is the responsibility of the participating retailers/e-tailers, System Integrators, or OEM partners to provide the purchaser with coupon codes to be used for redeeming the games. It is also at the discretion of the participating retailers/e-tailers, System Integrators, or OEM partners to determine the manner in which to issue the coupon codes. Coupon codes can be issued to the purchaser via various ways, including but not limited to (as examples only):

1. Email
2. Voucher packaged in shipping box
3. Printed on purchase receipt

The timeframe for receiving the coupon code will vary. Always refer to the place of purchase for information and instructions on obtaining the AMD coupon code. For full terms and conditions of current promotions, please visit: amdrewards.com/terms.

Once the coupon code has been received, claim your reward by visiting www.amdrewards.com and create an account or login with your existing account. Please note that it may take up to 48 hours to validate a newly created account on the AMD Rewards site. Once logged in, follow the instructions provided to exchange your AMD coupon code for the game activation code.