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Windows 7: Cannot access Network Shared Drives over Corporate Network on Wireless

17 Oct 2013   #1
gabriolinari

Windows 7 Ultimate x64
 
 
Cannot access Network Shared Drives over Corporate Network on Wireless

hi guys,

so I have this weird problem that is driving me nuts since some weeks... here's the thing

at work we have a corporate set up with Win 7 Professional, everything is setup on a "domain".

we all have Dell computers and we can connect either via cable or via wireless, pretty standard these days.

anyway, if I connect via cable and login everything works perfectly, I can see the local network shares and no problems at all.

Problems start to arise on wireless! Here's the crazy scenario:

- if I start PC on cable, with wifi turned off via hardware switch then say I undock the PC for going to a meeting room AND I turn on the wifi, everything works fine, I can see the network drives, all good (it crunches for a few moments when I load explorer the first time and then he "finds" the network drives)

- if I decide to go back to my station, turn off wifi, re-dock the PC, back to cable, everything works fine.

BUT

- if say I am on cable, undock the pc, put on the wifi and THEN I restart the PC, when the computer boots win 7 (it takes some time at boot) then I cannot access the network drives anymore! they have the red X and it says "connection cannot be restored" or something like that. internet browsing always works fine. and I DONT do any login on wireless, I think because it's on a "domain" setup.

that is tested 50 times in a row! basically if I don't give him the cable at boot, I cannot see the network drives. and also, when it cannot detect correctly the network drives, if I restart the laptop it literally gets stuck and I have to force a reset. on cable it restarts in like 10 seconds.

I also noticed that when I am on cable, if I go to "network" then I see some of my colleague's computers there, BUT if I am on wifi (when I cannot access the network drives), then I see just myself. this would make sense in a way....

things I already tried that didn't change a thing

- enable files and printer sharing, check
- check client for Microsoft networks
- TCP / IP > advanced > NetBIOS "enable NetBIOS over TCP/IP" from default that was before
- flush DNS
- restart winsocks with the net something command (sorry cant remember the syntax)

nothing seems to make a difference. to complicate things, some of my colleagues, with older dell computers don't have any issue at all in fact they are always on wifi.

for me it's a personal choice, I like to be on cable when at the desk (faster connection overall) and when I go to meeting rooms I use the wireless obviously but it's very annoying that I have to remember "not to restart" if I am in meeting room, otherwise I cannot see the network drives where we have work stuff!

sorry for the rant, help highly appreciated!

thanks
Gabrio


My System SpecsSystem Spec
.
17 Oct 2013   #2
UsernameIssues

W7 Pro SP1 64bit
 
 

What is the make/model of Wireless Access Point(s)?
My System SpecsSystem Spec
18 Oct 2013   #3
gabriolinari

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by UsernameIssues View Post
What is the make/model of Wireless Access Point(s)?
hello

I will check when I go to work in a bit, I believe it's everything Dell, will ask our IT admin. My laptop with problems is a Latitude E 6330.

Best,
Gab
My System SpecsSystem Spec
.

18 Oct 2013   #4
UsernameIssues

W7 Pro SP1 64bit
 
 

The only thing that I can think to do is to scan thru the manual for the Wireless Access Points and see if some setting looks like it could be blocking things. I don't know too much about this kind of stuff, but knowing the make/model of the WAPs might help other members to help you :-)
My System SpecsSystem Spec
18 Oct 2013   #5
gabriolinari

Windows 7 Ultimate x64
 
 

hello

i am now at work and these are the details, actually

Wireless Make : CISCO
Authentication : EAP / WPA2 Enterprise

and for the note, if i disconnect from the network (deleting the profile) and reconnect, it does NOT ask me the password, i think because it's on a domain setup type.

any clues?

thanks
Gbrio
My System SpecsSystem Spec
18 Oct 2013   #6
UsernameIssues

W7 Pro SP1 64bit
 
 

Do you happen to know the model number so that we can look for the manual?
My System SpecsSystem Spec
18 Oct 2013   #7
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Try to "ping" the server that hosts the network share. for example if share is \\someserver\sharename
Try in command prompt

Code:
ping someserver
Do it when everything is fine and when you have the problems described. Post results

It should respond with 4 sent, 4 received, 0 errors.
My System SpecsSystem Spec
18 Oct 2013   #8
gabriolinari

Windows 7 Ultimate x64
 
 

ok i talked with the IT guy

"we have a setup with a Juniper Firewall and then it relies on CISCO enterprise wireless routers"

this is the router, CISCO series AP1250, i cannot tell the exact model since it's hooked up at like 4 meters and wall mounted, it's definitely this one Cisco Aironet 1250 Series Access Point Hardware View - Cisco Systems

thanks
Gabrio
My System SpecsSystem Spec
18 Oct 2013   #9
gabriolinari

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Kaktussoft View Post
Try to "ping" the server that hosts the network share. for example if share is \\someserver\sharename
Try

Code:
ping someserver
Do it when everything is fine and when you have the problems described. Post results

It should respond with 4 sent, 4 received, 0 errors.
ok we did some further testing and interesting things happening:

- we have a "preset" network share in the laptops, those give the PROBLEMS, say letters S or M

BUT

- the IT guy gave me the path to the server direct like \\server ..... and guess what, that works when i am on wifi and i can access the shared folders properly.

it seems that the "pre-set" network drives are linked to a domain (our company's) that then has a path to the correct shared drives...with DFSROOT

so this is a workaround, i will delete the other network shares, change the shortcuts and voila'!

as for the ping, getting back soon.
My System SpecsSystem Spec
18 Oct 2013   #10
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

a "preset" network share in the laptops=>what do you mean by saying "preset"? You mean by say that : "they have a drive letter assigned"?

In command prompt do:
Code:
net  use
Post output when working and when not working. So 2 results (if they are exactly the same, only 1 results is enoogh)
My System SpecsSystem Spec
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 Cannot access Network Shared Drives over Corporate Network on Wireless




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