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I haven’t used my Surface Pro 11 for a few weeks (less than two months). When I turned it on this morning, Windows installed a large number of updates. After the updates completed, my Surface Pro 11 can no longer connect to my 6 GHz Wi‑Fi network — it only connects to the 5 GHz and 2.4 GHz bands.
The 6 GHz SSID is still visible, and I can enter the correct password, but the connection fails with the message “Can’t connect to this network.” My iPhone and Dell laptop both connect to the same 6 GHz network without any issues, so the router and 6 GHz band are functioning normally.
Wi‑Fi chipset: Qualcomm FastConnect 7800
Router: TP‑Link BE15000 (Wi‑Fi 7 tri‑band)
Windows: Latest updates installed today
Issue started: Immediately after Windows + Surface updates
Restarted Surface Pro 11
Restarted router
Forgot and re‑added the 6 GHz SSID
Checked router settings (6 GHz still enabled, WPA3‑Personal, no MAC filtering)
Verified other devices can connect to 6 GHz
Searched online — appears to be a known issue affecting FastConnect 7800 after recent updates
The only step I haven’t tried is rolling back the Wi‑Fi driver to an earlier version, which I would prefer to avoid if possible.
Is there any fix or workaround available for restoring 6 GHz Wi‑Fi connectivity on the Surface Pro 11 after the latest updates?
Thank you.I haven’t used my Surface Pro 11 for a few weeks (less than two months). When I turned it on this morning, Windows installed a large number of updates. After the updates completed, my Surface Pro 11 can no longer connect to my 6 GHz Wi‑Fi network — it only connects to the 5 GHz and 2.4 GHz bands.
The 6 GHz SSID is still visible, and I can enter the correct password, but the connection fails with the message “Can’t connect to this network.” My iPhone and Dell laptop both connect to the same 6 GHz network without any issues, so the router and 6 GHz band are functioning normally.
Device: Surface Pro 11
Wi‑Fi chipset: Qualcomm FastConnect 7800
Router: TP‑Link BE15000 (Wi‑Fi 7 tri‑band)
Windows: Latest updates installed today
Issue started: Immediately after Windows + Surface updates
Restarted Surface Pro 11
Restarted router
Forgot and re‑added the 6 GHz SSID
Checked router settings (6 GHz still enabled, WPA3‑Personal, no MAC filtering)
Verified other devices can connect to 6 GHz
Searched online — appears to be a known issue affecting FastConnect 7800 after recent updates
The only step I haven’t tried is rolling back the Wi‑Fi driver to an earlier version, which I would prefer to avoid if possible.
Is there any fix or workaround available for restoring 6 GHz Wi‑Fi connectivity on the Surface Pro 11 after the latest updates?
Thank you.
Thanks for the quick response. I’ve already gone through all of those troubleshooting steps before. But to respect your answer, I followed the instructions and repeated every step exactly as suggested. Unfortunately, the result is still the same — no luck connecting to the 6 GHz network.
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Hi JINGWEI WU,
Since the 6 GHz SSID is still visible on your Surface Pro 11 and other devices can connect successfully, the issue may be related to how the current wireless adapter configuration is interacting with the recent update rather than a problem with the router itself.
As an additional check, try disabling and re-enabling the Qualcomm FastConnect 7800 adapter:
You can also check Settings > Windows Update > Advanced options > Optional updates for any newer Surface or Qualcomm wireless driver that may not have installed automatically.
If the issue continues, collecting a wireless report may help identify whether the connection is failing during authentication or association - run this command in Command Prompt (Admin): netsh wlan show wlanreport
This generates a report in C:\ProgramData\Microsoft\Windows\WlanReport that can provide more insight into the connection failure.
I hope this helps point you in the right direction. Let me know if you need further assistance, feel free to ask me by clicking "Add Comment" or "Add Answer" if you cannot add comment so your response will be visible. Thanks for your effort.
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Thank you so much your answer. I had run WLAN report the other day after discussed with AI. Yes there are lots info in that report. I will run a new WLAN report and post it here. Could you please have a look for me? So we can narrow down the problem. Many thanks.
Hi JINGWEI WU,
Thank you for taking the time to gather the WLAN report.
To make the analysis easier, please focus on sharing:
If the report contains personal information such as your Wi-Fi SSID, MAC addresses, or public IP addresses, consider masking those details before posting.
Looking forward to reviewing the report with you and helping identify the next steps.
