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Hey folks,

I had set up the AC 1900 Wireless Dual Band PCI Express Adapter (Model No Archer T9E) about a month ago. After putting it into my computer and installing the drivers as per standard procedure, things were working just fine without issue.

About a week or two in though, I noticed some serious latency and slowdowns. Games that I frequently played wouldn't get me past login screens because of it. Websites would load at the rate of dial up.

AFAIK I made no changes, software or hardware wise, to anything since installing the adapter. To test that it wasn't an issue with my network, I used my previous method of connecting to the WiFi (a USB adapter) and found that it was performing just fine and connecting to the same network.

I even did a ping test with it and found that of the 4 packets it tried to send, 1 of them got dropped.
Anyone experienced this before, or know of a way to fix this? Also eager to hear any good investigatory tips as to getting to the root of the problem.

Thanks