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Windows 7: Limited/Slow/No access from laptop on WLAN


01 Dec 2012   #1

Windows 7 Professional 32bit
 
 
Limited/Slow/No access from laptop on WLAN

Hello everybody. I would like some help on certain connectivity issues i'm experiencing with my laptop. Please help.

Here is the hardware. Laptop ASUS A8E with Intel Wireless WiFi Link 4965AGN and Realtek Ethernet, ADSL modem + router TP-Link TD-8961ND, Desktop with Atheros Ethernet. Both PCs running Windows 7 Pro.

I used to have a Netcomm NB6+4W modem + router and that was problem free. Now since I have started using the new router I can't use the wifi network at all. The laptop goes retard after connecting to the network. It cant access the internet when set in PPPoE mode, cant dial when set in bridged, can't see the homegroup, or share files. Keeps disconnecting, cant open the router config page, cant use remote desktop, . . . . . and most surprising, if I try to hibernate, the screen goes blank as usual, but then it just waits, and waits, till I switch off the router, then it continues to save to disk and go off. I have an android phone and that seems to be connecting to the network ok, but I have to confirm. I have the latest intel driver installed. I have tried 802.11 g+n, b+g+n on the router.

Thanks in advance for any help.

Here is my WLAN config from the router, config from laptop, and advanced sharing settings which are the same for both Laptop and Desktop:




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Limited/Slow/No access from laptop on WLAN-modem_config.png   Limited/Slow/No access from laptop on WLAN-adshse.png  
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My System SpecsSystem Spec
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01 Dec 2012   #2

Windows 7 Ult, Windows 8.1 Pro,
 
 

Where is this modem configuration page coming from because it looks like this is from a router and not a modem.

This is the most likely problem you are seeing now, if you are trying to connect a router to another router that would explain the problems you are having.
My System SpecsSystem Spec
02 Dec 2012   #3

Windows 7 Professional 32bit
 
 

Quote   Quote: Originally Posted by chev65 View Post
Where is this modem configuration page coming from .......
I am using an ADSL modem + router. It is a single device. That is the wireless settings page in the configuration of the device.
My System SpecsSystem Spec
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03 Dec 2012   #4

Windows 7 Professional 32bit
 
 

Somebody please help, this is driving me nuts. There is some info I would like to add. If the laptop is restarted or the router wireless de-activated and then activated, the problem goes away. But everything goes wrong again about 15-20 minutes later.
My System SpecsSystem Spec
03 Dec 2012   #5

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by Ayson View Post
Quote   Quote: Originally Posted by chev65 View Post
Where is this modem configuration page coming from .......
I am using an ADSL modem + router. It is a single device. That is the wireless settings page in the configuration of the device.
You see the problem is that you plugged a modem/router combo into another router which always causes problems unless you perform certain set up procedure's. You would start off by turning off DHCP on the second router. Then it usually takes an assigned IP for the second router to make sure it's inside the subnet of the first router. Although sometimes DHCP works for this.

You would also need to plug one of the second routers Ethernet LAN ports into one of the first routers LAN ports, not WAN to WAN.

Or if you don't require two wireless access points and want to greatly simplify your network set up, then remove the modem/router combo unit completely and install a regular modem, not a combo unit, then plug the new router's WAN/INTERNET port into the modem's Ethernet port. You also would need to do the wireless setup on the new router once it's hooked up by typing it's default gateway IP into the URL of your browser.
My System SpecsSystem Spec
03 Dec 2012   #6

Windows 7 Professional 32bit
 
 

Quote   Quote: Originally Posted by chev65 View Post
You see the problem is that you plugged a modem/router combo into another router......
I feel you are still not clear about what I am saying. I do not have two routers. I have only this device TD-W8961ND - Welcome to TP-LINK. There is only a single network device. No two routers. The Netcomm modem I mentioned in the first post was damaged and has been replaced by the device in the link. I hope this clears the confusion.

I don't know whether it is a defective modem or some wrong setting. Restarting solves the problem for 15 minutes.
My System SpecsSystem Spec
03 Dec 2012   #7

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by Ayson View Post
Quote   Quote: Originally Posted by chev65 View Post
You see the problem is that you plugged a modem/router combo into another router......
I feel you are still not clear about what I am saying. I do not have two routers. I have only this device TD-W8961ND - Welcome to TP-LINK. There is only a single network device. No two routers. The Netcomm modem I mentioned in the first post was damaged and has been replaced by the device in the link. I hope this clears the confusion.

I don't know whether it is a defective modem or some wrong setting. Restarting solves the problem for 15 minutes.
Ok good, sorry I was confused when you said you can't open the routers configuration page but since you posted the configuration page, I thought it was from another router or something.

The ipconfig and the routers settings all look good to me. Have you tried updating the routers firmware?

What is the signal strength?

You should also use a Windows 7 certified driver so updating the wireless driver may work better.
My System SpecsSystem Spec
08 Dec 2012   #8

Windows 7 Professional 32bit
 
 

Quote   Quote: Originally Posted by chev65 View Post
....you said you can't open the routers configuration page but since you posted the configuration page....
I can't open the config page from the laptop in question. Actually I can open it, but success is random. The laptop basically keeps loosing the wifi connection randomly, but it says 'connected' in the taskbar. These posts and the modem config page is from my desktop.

Quote   Quote: Originally Posted by chev65 View Post
Have you tried updating the routers firmware?
Router firmware is newer than the one offered on the website. Router was purchased less than a month ago.

Quote   Quote: Originally Posted by chev65 View Post
What is the signal strength?
On the router I have set it to low, but even on high the problem persists. The laptop is about 5 metres away from the modem, and says 'excellent' signal.

Quote   Quote: Originally Posted by chev65 View Post
You should also use a Windows 7 certified driver so updating the wireless driver may work better.
Driver was updated before I posted here.

Now, I tried with my phone and, even when the laptop looses connection, the phone does not, and can access the internet. So the problem is specific to the laptop. This frequent disconnection is so very irritating. I can't do anything (wifi related) on the laptop without it getting stuck every few minutes.
My System SpecsSystem Spec
08 Dec 2012   #9

Windows 7 Ult, Windows 8.1 Pro,
 
 

Have you tried starting up the laptop in safemode to determine if the problem is from an installed program or not?

If the driver was Windows 7 certified it would also include the Msoft Virtual WiFi mini port which should be showing up in the ipconfig, so this may be part of the problem.

If the problem is only with this new router then you might want to make sure you are using the correct security and encryption which is WPA2 with AES encryption.
My System SpecsSystem Spec
11 Dec 2012   #10

Windows 7 Professional 32bit
 
 

Firstly, thank you for your quick replies. I have been trying some things the past few days. But im restricted by time.

Quote   Quote: Originally Posted by chev65 View Post
Have you tried starting up the laptop in safemode to determine if the problem is from an installed program or not?
I did start in safe mode, but it did not help because I need some thing that uses the network constantly for about 15 to 20 minutes to see whether the network is jamming. There is no other indication, ie. it says 'connected' in the taskbar, and is listed in the modem page even when it is jammed.

Now I have to say, when this jam occurs, and as it is stuck jammed, the desktop, connected via lan cable, and phone connected via wifi, does not experience any problem with internet connectivity.

Quote   Quote: Originally Posted by chev65 View Post
If the driver was Windows 7 certified it would also include the Msoft Virtual WiFi mini port which should be showing up in the ipconfig, so this may be part of the problem.
I updated the driver manually from the intel site, when this problem started. After you mentioned '7 certified', I tried updating from the device manager, and it says up to date. How do i get a '7 certified' driver?

Quote   Quote: Originally Posted by chev65 View Post
If the problem is only with this new router then you might want to make sure you are using the correct security and encryption which is WPA2 with AES encryption.
I was using WPA-PSK/WPA2-PSK ; AES, then I tried unsecured and now im back to AES.

Now, you mentioned, a software could be causing the problem. I think that may be the case. Right now I am, using my desktop, playing a movie via remote desktop, from the laptop. No other programs are running on the laptop and there has been no jam for the past 20 minutes. I closed remote desktop, and tried reopening and it is still working. During problem times, the remote desktop usually looses connection pretty often.

I think the problem program is uTorrent. My ISP offers unlimited transfers between 0200-0800 and i have set up uTorrent to transfer only during this period. It is during this time that the freezes mostly occur, after u torrent has run for about 8-20 minutes.

After you mentioned the chance of a software, I googled 'utorrent freezes network' and the like, and found that when u torrent exceeds a certain number of connections, some routers tend to lock up. I don't know whether this is what im experiencing, since my router doesn't freeze, only the laptop-router link freezes, as I mentioned earlier with the desktop and phone.

I kept remote desktop open for about 20 min, with utorrent running, but not transferring, and no jam. Now I have to wait till 0200 to try anything else.
My System SpecsSystem Spec
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 Limited/Slow/No access from laptop on WLAN




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