Thanks

this switch has -56 as the strength.

and it is the closest switch to my router compared to the other 3 that dont lose connectivity.

I'll try the wifi analyzer app. other than that any other ideas?

Has this been resolved?

I am having a similar issue. I have 2 of these HS210 devices that every couple of days or so drops off the WiFi. The error is a red WiFi symbol on the switch and shown as offline in the Kasa app. Pressing restart brings these units back online within seconds. It seems if I find one of the devices are offline, they both are. Both are Hardware version 1.0 with Firmware 1.5.8 (no further firmware updates available). The devices are within inches of each other on either sides of a wall.

Within inches or the same gang of the HS210 devices, I have a couple of HS220 devices which are always online and WiFi connected. They do not exhibit the issue the HS210 device do.

Thanks.

@JasonGz 

I'm having the exact same issue. And it seems like it only popped up over the last 2-3months. I gave both switches a static IP in the router and their signal is -37 dBm. Hit the reset button and they connect instantly. Very frustrating. Happening with two H210 switches, hardware version 1.0 and firmware 1.5.8.

I'm having the same issue, only it's a couple of times a day — not every few days. I just ordered a slew of these 210s, and installed the first one yesterday. Worked fine for a few hours, then dropped the signal. Reconfigured before going to bed, and the signal was dropped again by the time I woke up. Signal strength is -42 dbm, so... no issues there. Google Mesh WiFi, with "Great" signal strength throughout the house. Hardware version 2.0. Firmware updated to the latest (1.1.4) when I first connected. No option on the Google system for changing the 2.4 ghz channel... it claims it automatically seeks out the channel with the least congestion. What gives? Should I return all of these and go with another brand?

Same problem. 6 other KASA switches work OK but this one keeps going back to orange-green flash as if the reset button was hit. Everything up to date and WIFI signal is strong. Looking like a defective switch.

@kenfused Was there ever any resolution to this? I have 3 HS210 switches I have installed over the past 18 months. They control three different lights in three parts of the house..

About two months ago the oldest which was installed 18 months ago started dropping WIFI about once a week. It was flawless up to that time. It has gotten progressively worse and now will not stay connected more than 3 or 4 hours. 

About two weeks ago the one installed 8 months ago started dropping WIFI about once a week. It was flawless up to that time. It has gotten progressively worse and now will not stay connected more than 3 or 4 hours. 

The one I installed 1 month ago has never dropped WIFI.

I also have 15 other TPLink devices installed that work flawlessly including KP400, HS200 and HS103. All of my devices show they have the latest firmware. The two HS210 that keep dropping both have signals hovering around -52 dBm. I have tried these devices on DHCP and fixed IP's. No difference. I have a healthy WIFI network. It consists of a Ubiquiti USG Pro and three Ubiquiti AP AC Pro wireless access points. Nothing else on my network ever experiences a problem and nothing has recently changed on my network. Also if you are familiar with the Ubiquity management software you know i can see traffic and stats on everything. Nothing is out of whack. All three of the HS210 hit different access points based on location and not by design. I have disabled all the access points one at a time to force a connection to a different one. It made no difference. The two switches both failed in the same approximate time period. (I feel like the third switch that has only been in a couple of months is a ticking time bomb). 

Pushing the reset button for about a second on the lower right side of the switch will cause it to reconnect to the network. But 3-4 hours later we are in the same down state with the WIFI icon on the switch flashing green. It will not reconnect unless you hit the reset. 

At this point I truly feel like something is wroing with the HS210 switches. Particularly since I have never experiences any problems with my other TPLink devices. I would really like to know if anyone who experienced this issue actually found a resolution. Thank you.

@hajeff No. After TP Link "Technical Support" tried to jerk me around for more than a week (they were less than useless), I finally turned to Amazon who promptly sent me a replacement that has been working fine. It was just a bum switch, but TP Link didn't want to own up to it... and tried to make me jump through hoops to get a replacement from them. They wanted me to send it the bad one in BEFORE they would send me a replacement... leaving me without even a manual switch to use. Amazon shipped me the replacement, and I sent the bum one back in the same carton. No fuss, no muss. TP Link could learn a thing or two from Amazon.

@Ryan what does "no less than -70dbm" mean? The negative sign makes this ambiguous. My reading is -36 dbm. Do I have a problem with WiFi connection?