Lag in connection since installed router

RonWolpa Posts 2 Registration date Tuesday October 20, 2015 Status Member Last seen April 27, 2017 - Apr 27, 2017 at 06:14 PM
Since installed WIFI router TL-WR340G have tried a connection lag I had not as the DSL modem was connected directly to the computer.
For some reason it takes a larger time than before installing the router , it does not load sites or fails to download them completely .
I´ve noticed that in some cases sites load but some images don´t . The fail occurs even when there is full broadband availability , neither my smartphone (wifi is secured with WPA/WPA2 and no one else has password to log on) nor any other window of the browser on my comp. are downloading anything.
Every time a site does not load , or does not load completely I have to refresh the window a couple of times then it loads.
I just wonder if there is something I am missing.