I too use TL-WA801's and I find them Ok. A couple of things I would check for. - Assuming you are running 2.4GHz, check for interfering devices, for example,

I too use TL-WA801's and I find them Ok. A couple of things I would check for. - Assuming you are running 2.4GHz, check for interfering devices, for example, microwave running at the time of slow speeds. Offending ovens could be in an adjoining unit or home. I find some BlueTooth devices can also cause sporadic interference. Cordless phones, less so, but also possible. - Run speedtest.net when performance is good and when it is bad. This will give you a sense of the underlying internet speeds you are accessing via your router. - Are the different channels 5 channels apart? I would use 1 and 11 if possible. - Are the A/Ps configured for different SSIDs? I find it easier to diagnose things when they are different. Check that your device isn't connecting the the weaker WiFi access point. - Do you use DHCP on both A/Ps? I would configure each to a different subnet, e.g. 192.168.11.0/24 and 192.168.22.0/24 and yet another subnet for the router. - Do you have a system plugged into an ethernet port on the back of the router? I suggest that you do and do some comparison testing from there to rule out issues with WiFi. Especially speedtest.net when the WiFi connected devices are experiencing slowdowns. - If possible do a WiFi signal check, I like WiFi Analyzer (Android app). You want to stay away from misconfigured channels. See my other post in relation to this HN topic. - Double check that the WiFi is disabled on your router, just in case a power cycle has rest it back to default configuration. - In my experience the router is rarely the problem, especially if you have disabled the rather low grade WiFi that particular model has. It is also possible the your internet service provider has some under-provisioned equipment somewhere along the line. In some rapidly growing areas, DSLAMs are connected to low capacity backbone connections or MLPS switches. You might want to check what other users of your internet service provider are experiencing.