invisible 5Ghz wifi - 802.11Ac

My late 2013 Retina Macbook Pro is having trouble connecting to a 5Ghz wireless on a Netgear R7000 router. The laptop would see 2.4Ghz fine, but 5Ghz does not appear on the wifi dropdown list on 10.9.1.

Looking into the router setting, the 5Ghz wifi was on channel 149. So I checked the system information for the laptop, and it seems to support channel 149:

en0:

Card Type: AirPort Extreme (0x14E4, 0x134)

Firmware Version: Broadcom BCM43xx 1.0 (6.30.223.154.49)

MAC Address: xx:xx:xx:xx:xx:xx

Locale: FCC

Country Code: US

Supported PHY Modes: 802.11 a/b/g/n/ac

Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 149, 153, 157, 161, 165

Wake On Wireless: Supported

AirDrop: Supported

Status: Connected

I tried a few channel in those range(132, 157, 161) and the 5Ghz wireless (5 Dumplings) was still invisible to the wifi dropdown:

However, in iStumbler, the 5Ghz wireless was found in channel 149:

I've seen screenshots of people connecting at higher channel like 149. Is this a software restriction?