@PulakBansal Please check if you can feedback or file a request to the local support, then they would help further: https://www.tp-link.com/in/support/contact-technical-support/#Hotline-Support

@Sattel Please explain the issue you're encountering with more details, you can attach some screenshots if that's possible.

@LGuerra When the speed drops to 100Mbps, how about the Negotiation Speed displayed on the router web GUI? Please send us a screenshot, thanks. Meanwhile, have you choose 1000Mbps Full-Duplex under...

@hamimrahman.17 Follow the article below to find out the virtual MAC address of the WR850N as well as those connected to it: https://www.tp-link.com/support/faq/927/

@PulakBansal Hi, EC230-G1 is a customized version for Service Providers in the local market, which means the firmware of the router might be self-designed by your ISP. Visit the website for more...

@dmalcolm Sounds good. You can monitor the connectivity, and let me know if there is anything we can help with.