AFAIK that model has firmware problems. It's basically a "lemon". Though other linksys devices are very good. Check under the UPnP section here Connection problems? Check here first! (click on link) as there's a reference to fixing the firmware. It's a krak so to speak so do it at your own risk if you consider it. Also, port forwarding for this model tends to work better than upnp.

Not exactly what I was hoping to hear, but facts are facts. Have heard that this unit has its 'Undocumented Features', but am absolutly a newbie regarding routers/switches. Picked LinkSys, cause of its ease of setup and complete help files.

Have to read up on the 'Krack', and find out if its supporting my version, sounds like a firmware flash actually, and my first inclination is can I revert things back to OEM condition, should this Krack not work..

Before that I think I will revise the port forwarding, as well as change to a different port number. Things of this magnitude are always greeted with a scope of doom, on my part. . . . As over the years I have made a few doorstops this way.

Have a good holidays and Thanks again ! ! !
Cheers
~OS~