I can connect to the internet when I am wired into my D-Link N 300 wireless router but cannot connect to the internet when I go strictly wireless.

SOURCE: Wireless and internet

1. Make sure that wireless settings are properly synchronized.
>> ssid/security key.
2. Check your computers wireless connection status
> Make sure that it is set to "obtain ip address automatically)
3. If still not working if computer is set to obtain ip automatically, try assigning static ip on wireless pc
> You need to know your router's ip address and dns
4. Disable firewall on wireless pc.

SOURCE: Internet connection lost when wireless printer added to network

for reseting the password of ur dlink router u have to press the rest button on the dlink router (genrallyit on the bottom or on the back of the router it is like a hole u have to use a pen or pin to reset the router back to its factory default settings after that password of the router will automatically back to admin or password login to ur router change the settings to static ip in the router so that u can provide the static ip of the other router to ur this router (example if primary router HL 2170 ip address is 192.168.1.1 then u will provide this dlink router the ip address as 192.168.1.5, subnet 255.255.255.0 default gateway 192.168.1.1 primary dns 192.168.1.1 now save the settings in the dlink router now the ethernet cable from ur other router will go directly in to the internetor wan port of this router. now connect wirelessly to any router both will work fine without any problem

SOURCE: D-Link VWR-VD Router. Wireless fine. No Desktop Internet.

please call dlink tech support at 877-453-5465. just an advise on how to handle the call when you reach dlink tech support (agent); do not agree to call back after you troubleshoot with them (they'll be giving you a case id reference# and be advising you to check your pc or call "who" and call them back to continue the troubleshooting). insist to the agent that he need to resolve the problem asap (by the way, agents are not allowed to drop the call or they'll be dead-history!). and if the agent still insisted you to call back, ask for a "senior level technician" to finish the job (escalate the problem).
fyi: dlink tech support handling time to resolve a call is 15 to 18 minutes only. if you reach that 15-18 minutes (max) time the agent will think of a way for you to call back (advising you to check with your pc manufacturer, check with your ISP, call microsoft to update your software, etc... non-sense!) they need to do this in order to reach their handling time (agents need to reach 21 to 25 billable calls, and billable calls are "solution provided", "resolved", and "dropped call"). ---- believe me, i was one of them and repented.

SOURCE: Connecting Laptop wireless and Desktop wired to the router

Do you need to see the desktop or just share folders from each other? If the latter then you need to do the following:

Use Windows Explorer and select a folder you want to share. Right click and select sharing and security.

On the sharing tab click on Share this folder. Enter a share name ( I like to enter the PC name _folder name; Rick1_Downloads)

Click on Permissions. If your ok with everyone using the PC's and Laptops having access then highlight Everyone and click on Full Control.

Do this on each PC and Laptop.

That should be it or darned near close.

SOURCE: D-Link DIR-300 Router not working properly

Try to configure your router again, maybe that will solve your problem.