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[AmeerAlaraji]

Hello guys, I've been having this problem for over 5 months now, I have a Dlink DIR-815 and I'm with Cogeco. I called a technician over hoping he would fix this but he said it's not their router and they can't do anything about it, long story short, he told me that the 2.4Ghz and the 5Ghz bands keep alternating meaning that once one of them works the other one doesn't, if the 2.4 goes down the 5 goes up, and he said that's not supposed to happen, can someone please tell me about any possible solutions? This problem is causing me to get inconsistent internet speeds and very high ping (ms). Please help!

[FurryNutz]

Link>Welcome!

• 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?
• Are you wired or wireless connected to the router?
• Has a Factory Reset been performed?

Internet Service Provider and Modem Configurations

• What ISP Modem Mfr. and model # do you have?
• What ISP Modem service link speeds UP and Down do you have?
• Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values
• For DSL/PPPoE connections on the router, ensure that "Always ON" option is enabled.

Wireless Configurations
Links>Wireless Installation Considerations and Managing Signal Congestion

• 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 and 5Ghz routers: Try single mode G or N or mixed G and N on 2.4Ghz and single mode N on 5Ghz?
• 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.

[AmeerAlaraji]

I'll give you a picture of my settings and you can tell me what to change, I'm not that experienced, but how can I post pictures on here? I've tried several times but it won't post

[FurryNutz]

You can post your pictures at places like photobucket or imageshack and then copy and paste the IMG url address from one of those sites here in the forum and the picture will display.

[AmeerAlaraji]

I thought there was a way to insert pictures on here but anyways here you go http://s817.photobucket.com/user/ameermw3/media/Untitled1_zps1e2bb35b.png.html?filters[user]=137981434&filters[recent]=1&sort=1&o=0

http://s817.photobucket.com/user/ameermw3/media/Untitled_zps02c9b9ba.png.html?filters[user]=137981434&filters[recent]=1&sort=1&o=1

[FurryNutz]

Are most of your devices support N mode?
What current version of Firmware is loaded on this 815?
What regions are you located?
Do you have 5Ghz supporting devices?

[AmeerAlaraji]

I don't really know if I have 5Ghz supporting devices, I live in windsor, ON, Canada, I'm not sure if they use n mode, not really familiar with all this stuff sorry, and firmware version is 2.0, hope you can help!

[AmeerAlaraji]

Btw I tried single mode N on 2.4Ghz and found that it was the best so far on channel 11 with 20/40

[FurryNutz]

You need to comfirm w the mfrs of each devices to see what tjey supprt in regards to 5Ghz support. Not all devices support 5ghz. Refer to support sites and specs and documentation.

Glad you got 2.4Ghz working better for you. Keep us posted.

[AmeerAlaraji]

yeah I tried mixed g and n and found that it was better than n, I could care less about 5ghz, all I want is a lag free internet, without ping (ms) issues, I found that I'm still having the same problem, all I really want is a strong 2.4ghz

[AmeerAlaraji]

yeah it's inconsistant, n is not bad, but still having ping issues

[AmeerAlaraji]

I'd appreciate any type of help, I just need to get rid of the damn 8000 ping spikes

[FurryNutz]

Ok, lets do this,
Go here:
http://support.dlink.ca/ProductInfo.aspx?m=DIR-815
Select the drop down menu and select Rev B.

Download the zip file to your desktop. Unpack the .zip file to a folder where you see the .bin file.

Use IE or FF and do a factory reset under Tools/System with 1 WIRED LAN PC. Let the router come to ready. Log back into the routers web page using the 1 WIRED LAN PC and go to Tools/Firmware. Select the browse button and navigate to where you unpacked the .bin file. Select the .bin file listed in the folder. Select OK proceed to send the FW file. Let the router process the FW update. After it comes back to ready, do one more factory reset under Tools/System again. Let the router come to ready. You can either use the setup wizard to set it up again or manually go in and set it up. I prefer to use the wizard and complete that process. Then go in manually and set up the router.

Turn off the 5Ghz radio if your not using it. On 2.4Ghz, Set Mixed G and N modes, Give a new SSID name, Autoscan to Manual 1, 6 or 11. Auto 20/40Mhz and If your devices can support this, use WPA2/AES only, if some don't support AES only, then set Mixed TPIK and AES. 

Check to see if you have Short GI and HT 20/40 Co-existence under Advanced/Advanced Wireless. Try disabling them as a test for both.

[AmeerAlaraji]

Thanks man! My problem's solved!!! I'll hit you up if I encounter any problems in the future, much thanks!

[FurryNutz]

So upgrading FW solved it? Just wanna confirm with you. Glad its' working well. Enjoy.