@ItaGON I have been looking for a solution to your problem for the last few days. At last, I found the best wifi extenders to get improvised performance. here is the link to read more...

@HK77 The Solution (Worked In Our Case) Update the firmware to the latest US version. If you are not from US, you may not have one for your country. So you have nothing to do except flash US...

Step 1: Survey Step 2: Plan your Topology Step 3: Plan the Layout Step 4: Buy the Gear Step 5: Convert the New Router to an Access Point Step 6: Install the Access Points Step 7: Configure the...

@ItaGON . Make sure that the second extender is connected independently to the router instead of working as a slave extender.