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[romannet]

Hello,
I am not sure, if this topic is on a right place, anyway I have a problem with GO-RT-N300 D-link router.

I have a 120Mb internet connection. When I connect through normal FTP cable, I can have more then 100Mb (even thought router) anyway when I am connected using wifi, I cannot have more then 40Mb.

I did update of firmware - no chance
I checked channels and switched to free one - no chance

Can anybody advise me how to solve it? I have connected about 4-5 devices in my network and even if all devices except of one labtop are disconnected there is no speed up.

Thanks for any advices.

[FurryNutz]

Link>Welcome!

Is here a DIR model number on you unit?

• What Hardware version is your router? Look at sticker under router.
• Link>What Firmware version is currently loaded? Found on the routers web page under status.
• What region are you located?

Internet Service Provider and Modem Configurations

• What ISP Service do you have? Cable or DSL?
• What ISP Modem Mfr. and model # do you have?

It's not recommended to speed test via wireless as it can produce inaccurate results due to many variables with WiFi and environments...

[romannet]

Hello,

Is here a DIR model number on you unit?
GO-RT-N300

What Hardware version is your router? Look at sticker under router.
A1

Link>What Firmware version is currently loaded? Found on the routers web page under status.
I used the last one 1.00B02

What region are you located?
Czech republic

Internet Service Provider and Modem Configurations
What ISP Service do you have? Cable or DSL?
Cable

What ISP Modem Mfr. and model # do you have?
I have a Ubee modem EVM3230

It's not recommended to speed test via wireless as it can produce inaccurate results due to many variables with WiFi and environments...
Ok, I understand, but it is not just about speed test result, but also downloads are 3times slower then through cable. I have router about 3 meters from my labtops and does not metter on place in my flat. It is same on all places.

[FurryNutz]

Lets have you review this and try some of the suggestions and if you can answer some of the questions presented, it will help us get a better idea of what your system is:

Router Troubleshooting Suggestions and Tips

[romannet]

Hello again,
I have passed the article and tried most of tips, which relevant for my situation, but still no chance. Any other tips? I dont think that this is normal behvaiour. Thanks

[FurryNutz]

Double NAT and How NAT Works. To tell if the modem is bridged or not, look at the routers web page, Status/Device Info/Wan Section, if there is a 192.168.0.# address in the WAN IP address field, then the modem is not bridged.

Wireless Configurations
Links>Wireless Installation Considerations and Managing Signal Congestion and Good Neighbour Policy

• Any cordless house phones?
• Any other WiFi routers in the area? Link> Use InSSIDer to find out. How many?
• Turn off ALL QoS or Disable Traffic Shaping (DIR only) GameFuel (DGL only and if ON.) options, Advanced/QoS or Gamefuel. For the DGL-5500, review this for Streamboost information and settings: Furry's DGL-5500 Review
• Turn off Advanced DNS Services if you have this option under Setup/Internet/Manual or under Setup/PARENTAL CONTROL/Set to>None: Static IP or Obtain Automatically From ISP.
• Enable Use Unicasting (compatibility for some ISP DHCP Servers) under Setup/Internet/Manual.
• Turn on DNS Relay under Setup/Networking. Link>Finding Faster DNS Addresses using Name Bench
• Setup DHCP reserved IP addresses for all devices ON the router. Setup/Networking. This ensures each devices gets its own IP address when turned on and connected, eliminates IP address conflicts and helps in troubleshooting and maintain consistency for applications that need to connect as well as mapped drives.
• Ensure devices are set to auto obtain an IP address.

[romannet]

I am sorry, but I cannot find QoS option on my D-link modem. Can you please specify where it should be? I tried your path, but have only Basic settings, Wireless settings (+advanced, but it is not there), advanced settings (not there), maintanence, help..

thanks

[FurryNutz]

Ok. looking at the user manual, this model ROUTER does not have QoS. Only Traffic Control. Pg 38.

So disregard the QoS suggestion...

[romannet]

ok so any other ideas? Because I have tried everything..isnt it possible that it is caused by router itself? Low performance or anything like this?

[FurryNutz]

IF you shut off the WiFi radio and just connect a wired PC to the router, does the Internet still slow down? 

Disable the Traffic Control as well.

[romannet]

The internet over the wire is normal speed, only problem is with wifi.

[FurryNutz]

Wireless Configurations
Links>Wireless Installation Considerations and Managing Signal Congestion and Good Neighbour Policy

• 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 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, so you might want to try TPIK only or Auto TPIK and AES.
• What wireless devices do you have connected?
• Any cordless house phones?
• Any other WiFi routers in the area? Link> Use InSSIDer to find out. How many?
• If you have any of these options, Try turning OFF or ON Short GI, WLAN Partition, HT 20/40 Co-exhistance and Extra Wireless Protection if you have it. Recommended settings are default. Under Advanced/Advanced Wireless.
• Enable WMM Enable Under Advanced/Advanced Wireless.
• Try setting Medium or Low power output settings and test again Under Advanced/Advanced Wireless.

Router Placement
Forum User - "Well I feel really dumb. After moving the router away from other electronic devices my speeds are back to normal. Just a heads up for anyone experiencing slow speeds, you might want to move it away from other electronics and see if that helps."
6" minimum safe distance between devices.

[romannet]

Wireless Configurations

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.
Yes I changed it to uneque name

What wireless modes are you using?
2.4Ghz Routers only: Try single mode G or N or mixed G and N?
I tried mixed and also only N mode - still same

Channel Width set for Auto 20/40Mhz or try 20Mhz only.
tried both - still same

Try setting a manual Channel to a open or unused channel. 1, 6 or 11. 11 for single mode N if the channel is clear.

Only channel 5 was unsed so tried that. Channels 1 and 6 has more then 6 users

What security mode are you using? Preferred security is WPA-Personal. WPA2/AES Only. Some WiFi adapters don't support AES, so you might want to try TPIK only or Auto TPIK and AES.

Tried all options, now I have a auto TPIK and EAS

What wireless devices do you have connected?
2 labtops, one mobile, TV and xbox

Any cordless house phones?
no

Any other WiFi routers in the area? Link> Use InSSIDer to find out. How many?
yes, but not directly in my flat. I guess at least about 10 routers

If you have any of these options, Try turning OFF or ON Short GI, WLAN Partition, HT 20/40 Co-exhistance and Extra Wireless Protection if you have it. Recommended settings are default. Under Advanced/Advanced Wireless.

I did not find them. Using default settings

Enable WMM Enable Under Advanced/Advanced Wireless.
Sorry I did not find WMM option, maybe different name.

Try setting Medium or Low power output settings and test again Under Advanced/Advanced Wireless.
tried - still same

Router Placement
Forum User - "Well I feel really dumb. After moving the router away from other electronic devices my speeds are back to normal. Just a heads up for anyone experiencing slow speeds, you might want to move it away from other electronics and see if that helps."
6" minimum safe distance between devices.

The closets eletronic device around router is about 3 meters far away from router. Only one device around is modem.

[FurryNutz]

I recommend that you phone contact your regional D-Link support office and ask for help and review of your router and see if they might fix this or, send it in for RMA.

Let us know how it goes.