ATT Gateway - split lines?

[rmnc3r]

I have an ATT Modem/Router Model 5268AC that has "Broadband 1" and "Broadband 2".

My max service available is only 50Mbps. It was explained that the 50 Megs is split between 2 lines - typically 60/40.

I have 2 PCs that are hardwired and several WiFi devices.

Q:
Is there a way to configure the router to set hardwired PCs to operate exclusively on one leg (BB1) or the other (BB2), and do the same for the WiFi Devices?

[Robotron2k84]

[rmnc3r]

Yeah, we're still copper wired here. ATT says we're getting the advertised 50 megs, but speed tests on the cabled PCs continually show only 30ish.

I keep hearing about upgrades to FO, but not in our area, yet.

One other concern for the WiFi Devices; we have an old Airties 4920 repeater/extender - it is adequate, but is there something 'better' and cost effective? (read; inexpensive)

[Robotron2k84]

Repeaters/extenders are “in-band” solutions that occupy some of the usable bandwidth to retransmit the WiFi signal. Look into mesh routers that utilize a dedicated 5GHz backhaul radio for distribution. Those are “out-of-band” solutions that don’t consume usable bandwidth for extension.

As for your speed issues, investigate buffer bloat and tuning settings on your PCs for improved throughput.