USB Modem Intermittent Internet Dropouts

[chipped]

Hey people,

I have a Netgear 790S connected through USB to my Asus RT-AC3200 running Merlin 380.59.

For some reason I'm having intermittent issues on all my PC's, Windows, Mac, wired, wireless etc

The problem seems to be between the modem and the Asus.

I have tried with both USB 3.0 and USB 2.0.

ESET for instance says download interrupted whenever it tries to download an update, I paired it to my iPhone and it updated straight away.

On the same computer the internet works 70% of the time. Otherwise I have timeouts.

I have enabled Dual WAN and set the USB as primary.

Used the preset Telstra settings which are correct.

Left the model to automatic and it is correctly identified as a NETGEAR, Inc. AirCard 790S.

Hotspot is 192.168.2.1

Router is 192.168.1.1

Have set the routers IP to DMZ in the Netgear.

It's a bit odd, I've put over a hundred GB's through it so it does work, most of the time :/

Are there any tricky settings I should change or tune?

Log is attached

 

[chipped]

Something weird, you will see in the log that there are dropped connections for ETH4, but this has been unplugged for about 18 hours.

 

[sfx2000]

Check the settings on the 790S (ATT offers similar device as the Elite Pro), if I recall, there's a couple of config items in the 790 gui that control timeout values for the WAN side.

BTW - it's a fairly good router/hotspot as is - have you considered just using it if your clients are all wireless?

 

[chipped]

The only timeout setting I can see is for WiFi.