At the beginning of March I moved into a new situation where I had to connect my desktop to the internet through Wi-fi. I have one other housemate and we each have 2 devices that connect to the modem. My desktop, two phones and her laptop.
As soon as I had my desktop set up we started having problems with intermittent wifi connection issues with all our devices. After trying to troubleshoot it myself with no success, housemate called ISP and they sent a service person out. He determined that the issue was probably due to a splitter where they cable was running into the house, since we were only using internet access and not cable t.v. he thought that the signal was probably bleeding back into the unused part of the splitter (I may not be describing this exactly right, but this is how I remember him describing it to me). So he replaced it.
It did help, and for the past couple of months or so things worked relatively well. There were still occasional issues, but they were mostly brief and unobtrusive.
For the past four or five days I have been having some major issues with my desktop wifi connection again. The other devices seem to work fine. No problems with my phone, and when I asked housemate about it she said she hadn't noticed any issues.
The problem with my desktop is pretty bad, and connection has been very intermittent. It will work fine for, say, 5 minutes, then will have a problem for a few minutes, and then come back for a while...and so on. I have been able to stream a movie a few nights ago, but other than that doing anything that requires a consistent connection hasn't worked out well.
I also can also no longer access the 5G connection to the modem. Previously I had used it as a preference, but now I can't even connect to 5G, and often don't even see it as an option to connect to.
I've tried resetting the ip address on my desktop, but that doesn't seem to work.
I also followed the suggestions on this site, https://support.lenovo.com/ca/en/solutions/ht502846 but it hasn't helped either.
When I checked the radio types supported it lists 802.11n twice, and then b, g, a.
So, I'm not sure what else to do, if it's an issue with my desktop's wifi board, or if it is another issue with the signal (which doesn't appear to be because like I mentioned the other devices don't appear to be having any issues.)
Any help will be appreciated!