When you get a group of people on one channel, you get congestion, and a slowing of the network speed. Plus, there may be more than one AP and associated users trying to share the channel also. If you have your own system, you could use inSSIDer to find the least-used channel and use that. I don't know about the tech specs of the Huawei, but as gordon_s1942, said, the Netcomm router has the channel choice capability.
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