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Author Topic: DIR-625 keeps deauthenticating users  (Read 6762 times)

snid0039

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DIR-625 keeps deauthenticating users
« on: August 02, 2011, 06:36:41 AM »

Hi,

I live in Canada and I have Bell DSL internet. It's a Speedstream 5200 wired modem connected to a D-Link DIR-625 wireless N router revision A. The router has the latest firmware available, version 1.09, and other than MAC address filtering, the network is unsecured (I tried using WPA/WPA2 but ran into problems).

For the last few days now, the router keeps kicking computers/devices off the network. When accessing the router's log, it shows deauthentication for devices. It never used to do this. I did recently purchase a new laptop and add it to the network, but can't quite figure out of it's a coincidence, or if the new laptop is doing something the router doesn't like.

I have a Toshiba laptop running Windows 7 Home Premium x64, an HP laptop running Windows 7 Home Premium x64, a BlackBerry Pearl 9100 running OS 6, two second generation iPod touches (one runs iOS 3 and the other iOS 4), a Sony PlayStation 3 (the old one), an Xbox 360 Elite (the older model), a desktop running Windows XP Home SP3, and an iMac running OS X Lion. All devices are connected wirelessly through the D-Link router.

When the router fails (deauthenticates users), the resulting error usually claims either the DNS Server failed (the router acts as the DNS in the network), or the default gateway is not available (the router is acting as the gateway for the network) (these errors are according to the Windows 7 machines).

Does anybody have any ideas on what may be causing the problem?
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FurryNutz

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Re: DIR-625 keeps deauthenticating users
« Reply #1 on: August 04, 2011, 06:40:55 PM »

What ISP Modem do you have? Stand Alone or built in router?
What ISP Modem make and model do you have?

Ensure DNS IP addresses are being filled in under Setup/Internet/Manual?
Turn off QoS options.
Turn off Advanced DNS Services if you have this option Setup/Internet/Manual.
Turn on DNS Relay under Setup/Networking.
Setup DHCP reserved IP addresses for all devices on the router.
Ensure devices are set to auto obtain an IP address.
Set Firewall settings to Endpoint Independent for TCP and UDP.

What wireless modes are you using?
Try single mode G or mixed G and N?
What security mode are you using? WEP, WPA or WPA2? Preferred is WPA2 and Cipher type to AES only if your device support this.
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Cable: 1Gb/50Mb>NetGear CM1200>DIR-882>HP 24pt Gb Switch. COVR-1202/2202/3902,DIR-2660/80,3xDGL-4500s,DIR-LX1870,857,835,827,815,890L,880L,868L,836L,810L,685,657,3x655s,645,628,601,DNR-202L,DNS-345,DCS-933L,936L,960L and 8000LH.

smlunatick

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Re: DIR-625 keeps deauthenticating users
« Reply #2 on: December 30, 2011, 08:58:16 AM »

FYI:  Deauthenication of users / PCs can also be caused by firewall softwares and anti-virus softwares.  You need to check and make sure that these "trust" your wireless network SSID.
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