Laptop no longer finds 5Ghz band

[MrOzymandias]

Greetings,

I'm having issues with my wireless 5Ghz connection, since my laptop will no longer find it.
Well, if I disable the network adapter and enable it back on, the 5G connection will show up for a few seconds and then disappear. However, I cannot connect to it, even if I try during the short time it shows up.

My network adapter is a Killer Wireless-N 1202.

Now, the router is working properly, because my phone does detect the 5Ghz band and can connect to it, with no problems.

I think the issue might have started after I updated my network adapter's drivers. which I did this Sunday at around 2:00AM. However, later on that day when I turned on my laptop, I had no issues with 5G.

I noticed the issue last Tuesday. During Monday last week my Internet provider changed the modem and router. However, I didn't use my laptop that day and only noticed the issue on Tuesday, when my laptop couldn't find any connection and asked me to choose one.

The main router I used to have was a Linksys and now it's a Huawei one (which is both a modem and a wireless router). That being said, I've never connected wirelessly to either of those, but to a Netgear r7000 which I connected to them.

Yesterday, I tried hard resetting the Netgear router, thinking it might have been experiencing some kind of conflict with the new modem/router, but my laptop still could not find 5G yet my phone could.

I used the "netsh wlan show drivers" line on CMD and it did show my network adapter supports 802.11a. So, I don't think it's a driver issue.
Two weeks ago (prior to updating my drivers and getting the new modem/router) my laptop could connect to 5G just fine.

So, I'm entirely lost here. Any ideas what my issue might be and how to fix it?

Thanks in advance.

 

[rvcjew]

Have you tried rolling back the driver in the Device Manager?