No connection when IP-MAC Binding is on

> [...] No internet connection & couldn't log into router when IP-MAC
> Binding is on, [...]

   I don't know what "IP-MAC Binding" means to you, or where it might be
"checked".  It sounds like what Netgear calls (DHCP) Address
Reservation, but that doesn't seem to match your description.

> [...] I didn't try other versions firmware.

   There's a newer "Hot Fix" one now.

   "couldn't" is not a useful problem description.  It does not say what
you did.  It does not say what happened when you did it.  As usual,
showing actual actions (commands) with their actual results (error
messages, LED indicators, ...) can be more helpful than vague
descriptions or interpretations.

> any solutions?

   Might need to understand the problem first.