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Hi,

I have unfortunately terrible cellular service with AT&T at my home and am evaluating options. AT&T has given me a cell booster and I am trying to connect it, and have been instructed by AT&T that I have to open the following UDP ports of the modem to allow the booster to activate: UDP / 500 IPSec port, UDP / 4500 IPSec port, Emergency Services Protocol (ESP) 50, and UDP 123 NTP port (timing synch). Initially, AT&T said my internet provider had to enable this, but I own the modem (not Xfinity, my internet provider). I seem to be unable to talk live to an ARRIS rep to resolve this. Does anyone have advice? Thank you!

 

 

The s33 is a modem only device. You change port options through the router, not the modem. 

What router do you have? 

Thanks for answering and sorry for the late reply!

I have an Eero 6 mesh wifi system. I’ll try to figure it out… Thanks for pointing me in the right diretion, and if you have further advice, it’s greatly appreciated!

Make sure the booster is connected to the eero router and not directly to the modem. 

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