At the company I work at, we use for the most part Ruckus Wireless Equipment for the direct 2.4ghz wifi, and Motorola Canopy for the PTP links to residential and commercial, other then Bridgewave and Cielo for our core links. You can use the arp command, different iPhone apps, or nmap to get the mac address of the AP you connect to, and then look it up on google. Ruckus uses a zone director, which is basically a monitoring system for all the access points that you have connected to it. It supports port 22(ssh), as well as port 80(http). The zone director does the quality of service (QoS) which limits the bandwidth for the upload, download and bursts. All you have to do is gain access to the ZD through SSH or the web interface. As of right now, they don't have a login attempt limit or monitor for the web interface, but they may introduce one in the near future. SSH only gives you 3 attempts, but there's workarounds for that
Most ISP's use root or admin as the username for everything except core stuff.
Motorola Canopy uses a web interface, too, which doesn't monitor or a limit. It will either have no un/password, un is root, or un is admin. When you get access to the it has a QoS tab under configuration that you can up. Most wireless ISP's that puts radios on your roof uses Motorola because they're pretty cheap and very reliable.
You can also limit the QoS in switches(dell and cisco that I know of). SSH or telnet to them to change the settings.