@tkz Hello, thanks a lot for your valued suggestions. The features you are requested are not available on the current router firmware, while we have noted that, and we will keep an eye on this kind...

@t-ice If that is the case, I'm afraid we cannot make it alive even via the firmware recovery. You may contact the local tech support to check if this is covered by the warranty:...

@Aloysio Hi, thanks for getting back with the details. Do you mean you have contacted the local tech support to request a replacement? If that is the case, you can wait for the replacement, then...

@IbAL Actually, you can try the latest firmware as well on your VR2100, we will soon update the local website, thanks for reminding.

@louallen Hi, you can try woolze's suggestions to change the MTU size. Meanwhile, can I have the detailed network layout, please? Who is your ISP, how is the AX1500 connected to the network?

@Makaveeti NAT Boost is also called NAT Acceleration on some other brands, you may check this. You can try to disable it and monitor if it can improve the situation.