RAX80 question about blinking and red lights on router

> My router has a blinking light on the top right hand side next to the
> WIFI light, [...]

   Visit http://netgear.com/support , put in your model number, and look
for Documentation.  Get the User Manual (at least).  Read.  Look for the
LED descriptions.  Note that these indicators have identifying names.

> [...] why is this blinking?

   Possible firmware bug?  See, for rxample:

      https://community.netgear.com/t5/x/x/m-p/1948517

> [...] Also I have 2 blue lights and 2 red lights on the eathernet
> ports? [...]

   Are those colors what Netgear calls "white" and "amber"?

> [...] Could someone shed some light on why it is doing this. [...]

   Someone who's looked at the LED descriptions in the User Manual ought
to be able to.

   As descriptions go, "my Direct TV" and "my printer" are not good for
much, but I'd guess that those devices do not have 1000Mb/s Ethernet
interfaces.  Your "the computer tower" and "my Verizon signal booster"
(whatever they are) apparently do.