I wanted to post an update on this product.
Once you have the MSL code you can go into the advanced network setup where it allows you to disable/prioritize different bands.
Unfortunately this submenu appears completely broken and useless to me on this device. I've been reading how band 26 was supposed to be the best thing next to sliced bread for penetration and propagations so I purchased a grid antenna that is specifically tuned to 806Mhz to 896Mhz. I went into the menu and set band 26 to priority 1, band 41 to priority 2 (I don't have it on my tower anyways), and band 25 to priority 3.
I still connect to band 25! Band 25 does not have the option to be disabled like the other two bands, but the router still locks on band 25 even when dropped to 3rd. They REALLY want you to use band 25. They only time I've been able to get band 26 is when using the supplied small antennas. If this router even sniffs band 25 you will trump band 26.
I have no idea how it functions in the presence of band 41. It looks like I need to purchase an antenna specifically targeted to band 25 to get the best performance possible.