Xb8 connectivity issues

Just recently upgraded from our asus modem to the xb8. Since switching i've had an issue where the wifi will still be on, but devices lose internet for 5-10 seconds. This happens on my phone a good bit, but the problem is most noticeable on my computer as web pages won't load or i'll be kicked from online games. The computer is connected via ethernet, but the problem still happens on wifi as well. This problem did not happen on the old modem and restarting the xb8 did not work, any suggestions would be greatly appreciated.