WiFi not connecting. WiFi Name appears twice with additional special characters

[sujith_here]

Hello,

In my Laptop WiFi suddenly stopped working. I can see the networks but can't connect to any of them. Also, I see the network names twice. For example, if the network name is "VodafoneInternet", I see two of them in the Laptop. One with the real name VodafoneInternet and the second one like Vod(foneInternet, Voda#oneInternet, etc. 

Laptop Model: HP 15r-033TX
OS: WIndows 10. Issue exists in Linux as well.

Ethernet works fine without any issue. But connection to WiFi doesn't work at all.
I tried updating drivers, BIOS etc. but nothing fixed the issue.
Can someone please help me. Thanks in advance.

Best Regards,
Sujith

[banhien]

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@sujith_here wrote:

Hello,

In my Laptop WiFi suddenly stopped working. I can see the networks but can't connect to any of them. Also, I see the network names twice.

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@sujith_here 

Your machine probably supports dual channels networks therefore it see both networks on router. Normally the 2.4GHz network is name and other network is name-G5. For example:

               

They use same password and your machine should be able to connect one of them. Now please connect to one of them and enter password . What does it says ?

Regards.

[sujith_here]

Hello Banhien,

Thank you for the reply.
My Laptop doesn't support 5GHz band. The network adapter is Ralink RT3290LE 802.11bgn 1x1 Wi-Fi and Bluetooth 4.0 
But to verify I tried disabling 5Ghz in the router. Still Laptop is showing two networks. One with the correct SSID and an additional one with special character in the SSID. I am not able to connect to both the networks.
I can access internet only through LAN.