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D-Link VPN Router => DSR-500N => Topic started by: alexhbs on October 22, 2013, 11:15:04 AM

Title: DSR-500N losing WIFI connectivity
Post by: alexhbs on October 22, 2013, 11:15:04 AM

I recently purchased this model plus a DAP-2360 to upgrade and extend the capacity of my office's network.

It worked very well on the first day -- it was a friday and there was almost nobody connected to it -- but when monday came the network stopped responding.

I've since updated the firmware to the latest version -- 1.08B51_WW; Hardware version A1 -- and fiddled with the WIFI settings trying to get better performance but nothing seems to really help.

No WPS, WDS, WMM in use, and although I have two WAN connections, I'm only doing failover to WAN2.

The office is in a building with tons of other WIFI networks sharing the same channels (my DSR is in channel 11 and the DAP is in channel 7).

The WIFI varies a lot when I'm connected to the DSR -- sometimes I'll check and I'm connected to the DAP instead, and I sit beside the DSR.
If downloading a larger file through HTTP, the download speed will go from a few kBytes/sec to around 5 Mbps, and our connection is 30Mbps -- I'm sure that the maximum speed would be feasible because if I do the same test connected to the same DSR by cable (connected to a switch that is connected to the DSR) I can reach that speed.
Also getting a lot of disconnects from the WIFI. For no apparent reason.

What are the options that I have to try and fix this problem?

Thanks for any help!

-- Alex

Title: Re: DSR-500N losing WIFI connectivity
Post by: FurryNutz on October 22, 2013, 11:30:01 AM

Link>Welcome! (http://forums.dlink.com/index.php?topic=41537.0)

• What Hardware version is your router? Look at sticker under router.
• Link>What Firmware (http://forums.dlink.com/index.php?topic=47512.0) version is currently loaded? Found on the routers web page under status.
• What region are you located?

Wireless Configurations
Links>Wireless Installation Considerations (http://forums.dlink.com/index.php?topic=48327.0) and Managing Signal Congestion (http://forums.dlink.com/index.php?topic=53228.0)

• Ensure the default (dlink) SSID name is changed. Can be anything and not something thats already in use by any neighboring WiFi routers. Under Setup/Wireless/Manual.
• What wireless modes are you using?
• 2.4Ghz Routers only: Try single mode G or N or mixed G and N?
• Channel Width set for Auto 20/40Mhz or try 20Mhz only.
• Try setting a manual Channel (http://en.wikipedia.org/wiki/Wireless_channel) to a open or unused channel. 1, 6 or 11. 11 for single mode N if the channel is clear.
• What security mode are you using? Preferred security is WPA-Personal. WPA2/AES Only. Some WiFi adapters don't support AES (http://en.wikipedia.org/wiki/Advanced_Encryption_Standard), so you might want to try TPIK (http://en.wikipedia.org/wiki/Temporal_Key_Integrity_Protocol) only or Auto TPIK and AES.
• Any cordless house phones?
• Any other WiFi routers in the area? Link> Use InSSIDer (http://www.metageek.net/) to find out. How many?
• If you have any of these options, Try turning OFF or ON Short GI (http://www.smallnetbuilder.com/wireless/wireless-features/30969-what-do-80211ns-optional-features-mean-for-you), WLAN Partition, HT 20/40 Co-exhistance and Extra Wireless Protection if you have it. Recommended settings are default.
• Enable WMM Enable (http://forums.dlink.com/index.php?topic=50738.0).
• Try setting Medium or Low power output settings and test again Under Advanced/Advanced Wireless.