In short, I had many problems with TP-Link AEP245 APs before I got this one and now I don't have any. This is the best alternative to a mesh system if you have Ethernet in multiple locations in your home. I have a big house and lots of smart devices. I had trouble getting a good WiFi signal in remote corners of the house and my router kept crashing due to too many WiFi clients. I've considered using a mesh system, but since I have ethernet in multiple locations throughout the house, I would still use an ethernet backhaul. There is no need to use a mesh system that is designed to transmit information wirelessly from device to device at slower speeds. Instead, I decided to do what is common in a commercial context: just use multiple access points. I bought three AEP 245 access points from TP-Link and set them up to cover my entire house. This worked fine except I had issues with devices that move like cell phones. They didn't let go of one and moved on to the other. Or so. They always said they were connected but sometimes the internet wouldn't go through. The AEP245 is said to work offline if you set them all up with the same SSID, password and settings but on different channels. Unfortunately, I cannot recommend them for this configuration. I decided to buy this controller as a last resort. It advertises the ability to use fast roaming technology to instruct certain roaming devices to move from one hotspot to another when you leave. Anyway, this actually solved my problem. Now you can walk around my house with any device and it will always work. It never fails, the speed is amazing, and it was easy to set up and maintain. To be honest, I'm not entirely sure if my system uses 802.11 (k/r/v) or some other technology. All I know is that I had a lot of problems with my wifi before I got this and now I don't have any. It's a little hard to explain what this device does and TP-Link doesn't make it obvious. It takes control of all your access points and allows you to configure them from one central location instead of having to connect to each one individually. I don't think it's a big deal. This way you can control all clients on all access points and see which ones are downloading, disable them and do many other things. Besides monitoring bandwidth and clients and allowing for centralized configuration, it actually does something you can't do offline without some kind of controller. However, I can tell you that the web experience is 100% better with this controller. I don't really understand why this is necessary and how exactly it works, but I'm very glad I got it. I recommend it to anyone using multiple TP-Link access points.
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