Windows 10 - USB wifi keeps disconnecting/reconnecting

P

PawelMnandsa

Hi.

I have been using Win7 for like 9 years and never had real problems with it. My specs are Intel i5-4590, 250GB SSD + 1TB HDD, ASUS GTX 1060 6GB, 2x8GB RAM, 27'' Acer monitor + 24'' Samsung monitor, 600W power supply. I upgraded from Windows 7 Pro N to Windows 10 Pro N, current version 1909, OS build 18363.476. I have spent over 15 hours in the last 4 days troubleshooting and I am about to give up.


Wi-Fi problems

I have been using Wi-Fi USB modem - Netis WF2123 and it worked OK for over 2 years, I usually had speeds of above 50mbps. It worked fine for a couple of hours after installation of Win10, but then it stopped.


Symptoms: After disabling and enabling Wi-Fi in adapter settings and choosing my home Wi-Fi the internet "works" for 1-2 minutes - it's super slow though, around 0.5 - 1 mbps. Then it changes status to "No internet, secured" and I can't reach my router's admin panel (192.168.0.1) or my Raspberry Pi webserver via LAN IPs. Sometimes if I am lucky, Wi-Fi works for a few hours after resetting the connection. No real rule here apparently.

Same Wi-Fi works correctly for all other devices at my home, and I've tried connecting to both my home internet and phone's LTE connection via Wi-Fi.


  • running CMD commands as system administrator (ipconfig, netsh, winsock reset, etc.)


  • reinstalling drivers from Netis website, and other websites


  • searching for driver updates for all network hardware


  • reinstalling all motherboard drivers


  • reinstalling all Intel drivers


  • searching for Windows updates (it's as up to date as it can get)


  • restarting router and PC (if I see one more YT video that spends 5 minutes on explaining how to do this, I'll lose it)


  • disabling IPv6 and other not needed items from Wi-Fi properties


  • adding Reliable Multicast Protocol to Wi-Fi connection


  • enabling and disabling Airplane mode


  • removing and reinstalling wireless card in Device Manager


  • turning off Windows Defender/firewall etc.


  • installing all possible driver updates (motherboard, Realtek, etc.) using Snappy Driver Installer


  • trying different USB ports for Wi-Fi dongle


  • disabling power saving for Wireless and everything else


  • disabling Sleep/Hibernation in Power Options


  • restarting and enabling WLAN service in services.msc to Automatic (it was set to Automatic already before, but redone it anyways)


  • running sfc /scannow - it fixed some error with 1 file, no effect regarding wi-fi


  • installed Media Feature Pack for Win 10 Pro N


  • I cleanly installed Win 10 Pro (non-N) on another HDD and had the same problems with Wi-Fi

I have even bought a new USB modem, TP-Link TL-WN821N - it seems to work a bit more often than the previous one, but the issue still persists. I have tried automatically installed Microsoft drivers, and drivers from TP-LINK website - same results.


In Event Viewer, I've noticed that there are errors with info:

"WLAN Extensibility Module has failed to start.
Module Path: C:\WINDOWS\system32\Rtlihvs.dll
Error Code: 126"
I think usually around the time Wi-Fi fails.


I have no idea what to do anymore.

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