Greetings to everyone!
Hope this issue hasn't been discussed, I couldn't find similar problems.
So, my dlink has strange behavior - I can't browse several websites unless I access them by IP. This happens on particular sites - google.com(including Gmail, Youtube, PlayStore, etc), facebook.com. When I reboot the device, everything works for 10-15 minutes and then again I have to access these sites by IP. For another websites works fine.
My network configuration is: WAN cable comes home and ends in 8-port TPLink switch. From the TPLink goes one LAN to a set-top-box(about the digital TV) and another LAN goes to the dlink's port "Internet".
The Dlink spreads WiFi internet for two laptops, Philips TV and several smart phones. All of them with the same issue. Laptops working on Windows 7 Professional.
Internet settings in the router are set for static IP, subnet mask and dns provided by ISP.
If I connect the TPlink through lan cable directly to the laptop - no issues, everything works.
The router was several times reset to factory defaults and then set only the settings from the ISP.
Do you have an idea?