Hi All

I installed a solar solution a few months ago and am using a Powerline Wi-Fi extender in the cottage on my property approximately 30 meters from the main house.   

Although slower than in the house, the connection is working fine until the solar power generation spikes over 5000W. Then the Wi-Fi speed drops to 1 or 2 Mbps or drops completely. 

Any suggestions on how I can solve this problem? Some suggestions I've seen is that I need to install a relay of some sorts but since I'm not an electrician, I wouldn't know where to put it :-) 

Please see my setup details below: 

Powerline Wi-Fi System Information.

Fiber Link: 100 Mbps (Telkom South Africa)

Router: TP-Link – Archer AX53, AX3000 Gigabit Wi-Fi 6 Router

Powerline Wi-Fi Extender: AV600 – TLWPA4221 Kit

• Distance between sender (TL-PA4010 3.0) and receiver(TL-WPA4220 5.0) approx. 40 Meters
• Wi-Fi Speed at the receiver end approx. 20 Mbps Download, and 10 Mbps upload (Normally)
• Wi-Fi Speed at the receiver end drops to 0 – 2 Mbps download, and 0 - 2 Mbps upload when solar panels generate 5000W or above. (This is the issue I am trying to solve)

Solar Installation

14 x 545W Canadian Solar panels (Maximum Generating Capacity 7630W)

1 X SUNSYNK 8.8kW Hybrid Inverter

1 X Felicity Solar 12.5kWH 48 Volt 250ah Lithium Ion Phosphate Battery