Asus India — subject: asus router: kaif0z000698 / unit problem

Dear asus team,
I purchased asus router rt-ac66u-b1 (Serial number: kaif0z000698) on 20/july/2020,
1st day, i am facing a problem in this router (Poor signal range, not connect, and disconnect related). But, i have ignored it. Because, it's new. I thought this would be due to the setting. It endured for 12 days. This time was very painful for me. Whenever i sit for office work it is not connected, no matter how much you click. And then connect the neighbor's net.
When i connect with vpn. Automatically router connection will be disconnected. After that, the asus router did not connect, after so many clicks. I am connected to the neighbouring connection which is made by tenda. It's better than asus.
After that, i talk to asus customer care

Complaint id: wireless rt-ac66u-b1, country=india; asus service no=a[protected]

Date of purchase: — 20 /july/2020
Customer voc: we have asus router customer model is rt-ac66u-b1 and the serial number is kaif0z000698. Customer is facing the following problem in asus router

1.in asus router takes time to get power on
2. Over heating issue in router
3.in asus router signal strength issue and connection drop issue
4. Wifi signal is often disconnected
5. It quickly disconnects when the vpn is connected and does not connect again.

Previous video
(1) i am facing this problem so many times. Nothing to connect on my laptop. Connection drop down
Please find at
https://drive.google.com/file/d/18uvUmCPsP6PmnfRpKYtWwokmJAYOBA70/view?usp=sharing

(2) when i connect with vpn. Automatically router connection will be disconnected.
After that, the asus router did not connect, after so many clicks.

I share this link: https://drive.google.com/file/d/1ZGuIpt2NrNNYuFeHYqyL-_i_NCzOPwMy/view?usp=sharing

New videos

(1) https://drive.google.com/file/d/1fBcv9xtHyfU_f4MhmZo3i-Sxq1C0Se02/view?usp=sharing
(2) https://drive.google.com/file/d/1f7rZ_JBwwcXXGWhnVnMPdAg5oTByFlUB/view?usp=sharing
(3) https://drive.google.com/file/d/1fPzqoaeJQLmvO7_rNgXIwqvsRF5vMBhR/view?usp=sharing
(4) https://drive.google.com/file/d/1fR1mq_HzNl22BvJ0n6QN_My7UPQrF2nV/view?usp=sharing

Conclusion: please replace my product. Because, i have spent a painful days on this product. After a big amount of money is spent.

If it is not possible. So, please refund