As I have MT882, I can post the screen shots for the program you want to PF with MT882.
( some are available in tinypic.com search dataone. )
1. Firstly ensure you can connect to Internet always, with MT882 ONLY whatever settings you change.
( keep a record of working settings ) a) dialup mode ( easy no PF reqd) (b) "always On"
2. Then connect the
Netgear and try the connection wizard,
with RJ45 from modemMT882 to Netgear.===>>lan1 computer)
If successful
3. Try the WIFI option. ( not needed , if you don't have a
laptop)
4.Confirm Internet connection OK.
5. Try PF in Netgear+ mt882
How is Port Forwarding Configured?
more===>> on feedback 1,2,3,4,& 5