I have a 1 Gigabit Internet service program with Comcast/XFinity and recently purchased and set up a new Arris Modem/Router Combo that Comcast/XFinity recommends for my service. But now my Playstation 5 LAGS terribly to the point that we no longer play games on it. I bought this new unit to IMPROVE WIFI performance, not degrade it….and understand that the Playstation 5 is only 2 rooms away from the Arris Modem/Router and on the same floor. So distance is not an issue. What settings can I change in the SURFBOARD APP (or other) to improve my situation?
Solved
Playstation 5 LAGS with new Arris Modem/Router Combo

Best answer by SURFboard Moderator
Could you please let us know if this issue is occurring only on your PlayStation or on other devices as well? Additionally, is the problem happening on the 2.4 GHz network, the 5 GHz network, or both?
If the issue is specific to the PlayStation, we recommend enabling port forwarding to help prevent any interference.
You can follow the instructions provided in the link below to set up port forwarding:
http://arris.force.com/consumers/articles/knowledge/G34-G36-Port-Forwarding-Setup
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