zuhloobie

From the screenshot you provided there is a section called DHCP Reservation under LAN Settings. Not sure if it will list devices or not so you can see the IP but if not, copy the WAN IP from Settings > WAN on the R3 and then enter it there.

Hey zuhloobie,
 I do have a question for you.. Are you still currently in Bridge mode? Im not sure one can reserve an IP when in bridge mode..
If you are having connectivity issues in Bridge Mode you can also try to put it back to router mode and then set the R3 in the DMZ feature of your Century link router.
If you need further assistance just post back and we can help you along the way.
Thanks!
Zippy.

@zuhloobie
  I just dont want to confuse you on this matter.. Basically theres commonly two ways one can do this.. One would be to use what you are now which is Bridge Mode and have Fraser help you more.. The other way would be to put back your Century Link into router mode and then put the R3 in the DMZ feature of your Century Link router.. Basically what like you did with a console but this time it would be the R3.. Those are your two options..
If you want to hear back from Fraser first and go from there that will work.. He will be back tomorrow to further help you  
Either way we will try to get to the bottom of your disconnects  So no worries..
I will check in on how things are going for you!
Thanks!
Zippy.

Your totally welcome! I think thats a good idea/plan! Thats what id suggest as well.. Just so this doesnt get all mixed up.
Always here to help when I can..
Thanks!
Zippy.

@Zippy thank you for being so helpful! It's very appreciated.
I think I'll wait until I hear from @Netduma Fraser before trying the DMZ route. Just to exhaust where it's at currently with its settings and to also not introduce another variable too soon. 

@Zippy whoops, that's embarrassing - more obvious that I care to admit, LOL - thanks!
Playing on a PS5 hardwired to the fiber. There's another PS5 that's connected wirelessly. No other platforms being gamed on.
Here are the logs.
R3_2024-01-15T22_49_38.088Z_logs.txt

Hey @Zippy!
Confirmed on latest firmware.
I've honestly been trying to find the logs since I bought it - where are they located?