Asus Zen notebook can't access wirelessly

I am working on an Asus Zen Notebook running an Intel Centrino Advanced N-6235 on Windows 7. The notebook can connect wirelessly at other sites including the user’s home and another enterprise network. On our network, other devices (iPad, iPhone) can access it automatically except the notebook. Wireless Zero Configuration was already set to “Start” and the notebook automatically accessed our “guest” (low bandwidth) network until I disabled its auto-connect feature as to not conflict with authenticated wireless network access.

I remove the notebook “homegroup” configuration (which has been noted to cause these issues), installed the latest Intel driver and “CCleaned” it but after restart, the same issue recurs after testing on other networks.


Please help! Thanks.
Tech_20Asked:
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Tech_20Author Commented:
Everyone, thanks for your help but I was able to solve it. Concisely, we did the following before successfully restoring the wireless connection:

* ran a utility to remove any residual files and correct any registry errors interfering with the normal software usage
* reinstalled the wifi driver
* created a new wireless profile manually

So far, no issues reported. I'll plan to keep the question open for the next 24-48 hours.

Thanks again.
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Michael-BestCommented:
Use a previous restore point to undo the changes that you have made.
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gplanaCommented:
Can this notebook connect to any wireless? If not maybe you have wireless device off (some laptops allow to disable wireless) or maybe it has some hardware problem. In case of hardware problem you should go where you bought your laptop to ask for help.
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Tech_20Author Commented:
As I stated before, the notebook can connect wirelessly at other sites including the user’s home and another enterprise network as of today. The hardware is working, so far it points to a software issue.
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Tech_20Author Commented:
@Michael-Best: The issue was occurring before the homegroup configuration change (please refer to question # ID27052135). I reconfigured that setting to rule out that possibility.
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nobusbiljart fanCommented:
well i had similar troubles, ending up in a bad wireless adapter.
so i suggest to test with another adapter ( you can take one from a working laptop, and exchange it for testing)
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dshin10Commented:
Possible that a wifi adapter exists in the affected geographic area with the exact same mac address as your laptop. mac clone is done to pcap your connection, possibly also to maintain pcap for MIM and PSK cracking using 4 way exchange. Getting another wifi adapter (cheap usb) to test can see if this is the problem. If so, change your ap settings and block your mac address on that ap for any future connection and continue to use the usb wifi.
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Tech_20Author Commented:
@nobus, @dshin10: Thanks. I'll look into testing/replacing the wifi adapter.
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Tech_20Author Commented:
So far the wireless adapter diagnostic test confirmed the hardware was working and can detect nearby WAPs. The Intel hardware test to a WAP failed (association test). A co-worker in Networking confirmed there was no MAC address filtering and he could see the MAC address when I was able to connect via guest account access (limited bandwidth) along with getting internet access on a browser.

The co-worker in Networking also confirmed there was no competing MAC address from another wifi device preventing access. I deleted an anti-virus app (part of the original image) that was controlling/interfering with Windows Firewall to rule out that possibility of it preventing access.

After a restart, the issue now is I still can't access the authenticated network even with good credentials, just the guest account. Help.
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Tech_20Author Commented:
Can anyone think of any immediate registry settings that I can configure before I reimage the Zenbook?
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Tech_20Author Commented:
The issue at first appeared to be hardware-related but after thorough testing, it was the software that was faulty (residual files, Wi-Fi driver and a corrupt wireless profile). Unlike other wireless connection issues, which are often solved by the others' suggestions, this one was different.
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