I am looking at these cables for connecting between the Archer A10 and the antennas (the current ones or perhaps some better ones?).
The current setup just has the attached antennas all smushed into a small cabinet.
Bingfu WiFi Antenna Extension Cable 2-Pack RP-SMA Male to RP-SMA Female Bulkhead Mount RG174 Cable 3m 10 feet for WiFi Router Security IP Camera Wireless Network Card Adapter https://www.amazon.com/dp/B07SYPDYLW/ref=cm_sw_r_cp_api_glt_fabc_MMMB958AKD4JQK7FGFPB
Wifi with external antennas uses RP-SMA connections.
You can get extension cables for example to extend your wifi range.
You could try this.
lol "gaming router"
I'd wager someone could be more insightful if they had the ISP modems model.
Here is a little trick: You clearly have a WiFi enabled rig, you could use cable extensions for the antenna, or use a USB extension cable for those plug n play WiFi adapters. I can't guarantee that this won't degrade the connection a bit, but as long as you don't have to take it over 25 feet and acquire quality cables you should see pretty good results.