I have a dual-band router with several laptops and two printers connected to it. Most laptops use 5GHz, while the printers and a couple older laptops use 2.4GHz. All laptops in the 5GHz can connect to printers no problem, but none of the laptops in 2.4GHz can even ping the printers.
All the 2.4GHz laptops are identical, running Win 8.1.
What settings can I try to adjust in the router / the laptops to fix this?
EDIT: I tried joining the 2.4GHz on one of the laptops that also operate in 5GHz. I can't connect to printers when I join the lower bandwidth network, so culprit must be settings on the router.