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Samsung forum: Samsung 305U WLAN/LAN failures

by: AdamBourke January 8, 2013 4:54 PM PST

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Samsung 305U WLAN/LAN failures

by AdamBourke - 1/8/13 4:54 PM

I have a samsung 305U and it was working fine until a couple of days ago.

I needed a LiveUSB partition manager (I used Parted Magic) to use on another laptop, which I created using my Samsung. Then I shutdown Windows 7, changed the boot order in the BIOS and booted Parted Magic from the LiveUSB - to check that it would boot properly. A popup appeared saying wifi wasn't working, but I figured it was because it wasn't a full OS, and closed the notification. I opened the Partition Manager (Out of curiosity about the partition makeup of the Samsung) but closed it again without doing anything. Then I shut down, set the BIOS back to the way it was and reopened windows/

Immediately, a samsung program opened, saying that major drivers were not found and would I like to reinstall them. I did so, and most issues (such as my screensaver not displaying due to the Graphics card driver not being installed) were fixed. However, neither the LAN or WLAN work now.

I haven't looked into the LAN as much as the WLAN, but the WLAN will connect to a network with "limited connectivity" (I.e it recognises the network is there, but that's about it). In Device Manager the following items have yellow exclamation triangles on the icons:

Broadcom 802.11n Network Adapter - Deterministic Network Enhancer Miniport
Cisco Systems VPN Adapter for 64-bit Windows - Deterministic Network Enhancer Miniport
Realtek PCIe GBE Family Controller - Deterministic Network Enhancer Miniport
WAN Miniport (IP) - Deterministic Network Enhancer Miniport
WA Miniport (Network Monitor) - Deterministic Network Enhancer Miniport

And I'm not very experienced with networking terms, so I don't know what these all mean. The first three have entries with the same name minus the " Deterministic Network Enhancer Miniport" and those ones DONT have the warning icon.

I'm using 64-bit Windows 7 Home edition. Thanks for any help you can give,

Adam


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So the OS looks damaged?

by R. Proffitt Moderator - 1/8/13 5:03 PM

In Reply to: Samsung 305U WLAN/LAN failures by AdamBourke

http://www.samsung.com/uk/consumer/pc-peripherals/notebook-computers/ultra-portable/NP305U1A-A02UK-spec shows it came with the OS DVD in case it really needs a do over. But booting and modifying the partitions is only done after we backup. Or else we run the risk of losing our stuff.
Bob


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Didn't Change Partitions

by AdamBourke - 1/8/13 5:15 PM

In Reply to: So the OS looks damaged? by R. Proffitt Moderator

The partition changing was done on a different computer, not this one. I just loaded the OS to test the BOOTMGR was present, as the first time I made the LiveUSB it failed to create the BOOTMGR - in the same way that many people boot linux from a liveUSB without altering any partitions or changing Windows.

The Notebook doesn't have a DVD drive, although it does have a backup-partition that allows windows to be repaired. However, I'd rather not do this as it deletes all my files and I don't have an external Hard drive, so it would be tedious.

I was wondering if there is something wrong with this "Deterministic Network Enhancer Miniport", but I dont know what it is.

Adam


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WOW!

by R. Proffitt Moderator - 1/8/13 5:20 PM

In Reply to: Didn't Change Partitions by AdamBourke

Surely way off the support map. Not only did you not change this on the host PC but you are doing the partition change on another PC that calls into play how the BIOS maps sectors. Yowch.

With the changes in BIOS to EFI (I can't tell if this laptop is EFI or not) we have some laptops you can't do this anymore.

As to the DVD drive, that's not optional when we need to restore. I have seen some netbook/ultrabook owners try to state it shouldn't need one but heck, you can drive around without a lug wrench in the car but eventually you'll discover why we need it.

Time to reload the OS and start again.
Bob


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Solved - VPN client was corrupted

by AdamBourke - 1/8/13 6:07 PM

In Reply to: Samsung 305U WLAN/LAN failures by AdamBourke

After some more searching online, I discovered that the Deterministic Network Enhancement thing us used in several different programs - on my computer it was by the Cisco VPN client. I've had this installed for months. However, something must have corrupted when I launched the liveUSB perhaps. I don't know why it happend. But I fixed it.

On the citrix site (They make the DNE thing) it suggests uninstalling everything that uses it, and provides some tools to try and fix the problem. Instead of uninstalling, I tried repairing the Cisco VPN client first, and now everything works. (Oh, before that I also did the recommended registy value change from the same site - but nothing changed).

Interestingly... The DNE devices have disappeared from my device manager. Perhaps it was some update that downloaded before I booted the LiveUSB and I just hadn't noticed it.

But This is solved now.

Adam


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