I have this USB Wifi Adapter that I've used for several years. A couple of days ago I upgraded my TalkTalk modem (Sagemcom Fast 5364) to an Archer V2100. Everything is great across all devices except my main Windows 10 PC. The Wifi connection keeps getting lost, both reported as disconnected and reported as connected but nothing loading. It seems to happen when I access data-heavy websites like Google Maps or YouTube, but I'm not sure on that. eg. Trying to access this website to post has taken me fifteen minutes getting the pages to load and progress.

When the adapter fails, I can use Windows Troubleshooter which 'resets the Wifi adapter' and it works for a bit, but then it stops again. I've tried it in different USB ports with the same issue.

The device comes up as a Realtek RTL8188EU 802.11n in Control Panel.

This is my main internet access. It's incredibly debilitating, and confusing as I'm using two TP-Link products. It should be more reliable than the TP-Link USB adapter with the Sagemcom modem.

Motherboard is an ASUS TUF B550 without onboard Wifi