Model :

Hardware Version : Not Clear

Firmware Version :

ISP :

Hi,

I'm having problems with my router, which I cannot find a logical solution for.

Firmware Version:	3.13.33 Build 130617 Rel.46239n
Hardware Version:	WDR4300 v1 00000000

The problem:
Everytime I login (via Chrome, other browsers seem unable to load the page..) to the webinterface (via IP or DNS) it either logs-in or says (In chrome): "ERR_CONNECTION_RESET".
When I am able to log in ( 33% chance per page refresh) I can use the left sidebar to navigate the webinterface, but the middle and right frame rarely load. Usually the error on it says "The connection has been reset (in Dutch)" which seems to me as the same error on the log-in (ERR_CONNECTION_RESET). When I right-click the frame and choose the 'Reload Frame'-option in chrome, the frame reloads and says:
" You have no authority to access this router!".
or
The connection has been reset.

What can I do to fix this issue??