I bought both of these USB wifi cards to utilize my RT-AC87R wifi speeds and neither of them worked.
Bought the AC55 first, max speeds came to about 220mbps (compared to the 420 i get on my onboard wifi chip). Tried many different drivers and installers, nothing fixed it so i returned it.
Then i picked up the AC56R since it was on sale, supposedly more powerful than the AC55. Max speed i get is around 350mbps. Not only that, but the device continuously BSOD and froze/crashed my system.
System info: G751JY, windows 10.
Also tried both of these devices on a surface pro 4, same exat problems happen.
RT-AC87R 5ghz channel, should outpout from 700-800mbps (fibre network)
Does anybody have experience with the AC56 that can help me before I return it?