Wi-Fi Connection issues

Question

Wi-Fi Connection issues

Piotr Lis 0

For some time I have issues with my Wi-Fi connection. At first I thought that my USB Wi-Fi card is an issue and it partially was because something started to be wrong with cable, so i bought PCIE one and also antena on 2 meter cable so I could set it up in better position and I managed to have full or almost full Wi-Fi strength but i pretty often have large ping spikes that sometimes end up in losing connection to Wi-Fi. Also I've got two networks - 5G one and 2.4G one - 5G one has even more issues as after almost each time I boot up my PC, it will try to connect to 5G network but fail saying "Cannot connect to this network". When I try to connect manually, same thing. After multiple attempts, it starts asking me to type in password as some information have changed and i do so and same thing. After multiple attempts, this time providing password each time, it will either connect or start simply saying "incorrect password" even tho password is correct. Forgetting network doesn't help. 2.4G doesn't have such issues. Occasionally PC will refuse to connect to it but only one time. The biggest issue tho is ping spikes and disconnecting on both networks.

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Answer 1

Jeronimo Fuerte 42,115 Independent Advisor

Sorry to hear that you are experiencing issues with your Wi-Fi connection. Could you please share some additional information about your setup?

Are the PC and the router/modem located in the same room, or is there a significant distance between them?
Have you tested this device with a different Wi-Fi network, such as a mobile hotspot, to verify if the issue happens with other networks as well?
Could you please try restarting the modem/router and check if the issue persists? This can help refresh the connection and clear temporary network information.

Even if other devices can connect successfully to the same Wi-Fi network, the issue could still be related to the configuration or saved network information on this specific device, as different devices may use different connection settings.

Piotr Lis 0 Reputation points

2026-07-14T01:11:25.18+00:00

There is a room in between router and PC - basically router and PC are separated by two walls and some free space

I sometimes used mobile data from ny phone on PC but not long enough to see if issue persists

About restarting router - I did it multiple times

Some time ago, maybe less than a year, I don't think I had such issues as I have now, at least not as big and frequent and nothing in the setup has really changed

I've got no way of getting router closer or getting connected to router via cable

I definatelly didn't have issues with 5G network refusing to connect
Jeronimo Fuerte 42,115 Reputation points Independent Advisor

2026-07-14T01:41:23.9333333+00:00

While it can be confusing when a previously stable connection starts experiencing issues, it is important to keep in mind that wireless environments can change over time.

Even if your PC setup has not changed, the gradual addition of new smartphones, smart TVs, and other IoT devices in your home — as well as possible changes in nearby wireless networks from neighbors — can increase interference and reduce the overall efficiency of your Wi-Fi connection. This additional wireless traffic can contribute to issues such as ping spikes, packet loss, and connection timeouts, especially when the signal already needs to pass through physical barriers like walls.

Since you mentioned that the issue does not occur when using a mobile hotspot, it is very possible that the problem is related to your home Wi-Fi environment or signal coverage. As a test, I would recommend temporarily moving the PC closer to the router/network device and checking if the issue persists.

If the connection becomes stable when closer to the router, this would indicate that signal strength or interference is likely the cause. In that case, you could consider improving coverage by adding a Wi-Fi extender or mesh system.
Piotr Lis 0 Reputation points

2026-07-14T10:07:29.6+00:00

I will look at mesh systems and Wi-Fi extenders, but what about the second issue with my PC having troubles connecting to 5G Wi-Fi, me having to try to connect multiple times and PC wanting password and saying that password I'm providing is incorrect altho it's correct before i can finally succesfully connect?
Jeronimo Fuerte 42,115 Reputation points Independent Advisor

2026-07-14T19:20:55.9933333+00:00

It was actually mentioned in my previous reply: "This additional wireless traffic can contribute to issues such as ping spikes, packet loss, and connection timeouts, especially when the signal already needs to pass through physical barriers like walls."

When you try to connect to the network, if the system is unable to establish the connection and eventually reaches the connection timeout while retrying, it may incorrectly report that the network password is wrong, even though the password is actually correct. This is a generic error that can occur when the authentication process does not complete successfully due to connectivity issues rather than an invalid password.