@Kevin_Z Hi, thanks for the reply. The firmware should be the last available for this router. Anyway, after a few more resets/tests I tried to access using Chromium instead of Firefox and it worked....

Hello, I haven't been able to access the web management interfarce on my TD-W8960N v4 router/modem since I updated the firmware some time ago. It messed up the password, I can't access neither with...