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Forum Discussion
Solved
NTP issues when Orbi (RBR50) is in Router mode
I have AT&T Uverse with a AT&T Pace 5268AC gateway. My RBR50 is setup in router mode. It is in the DMZ of the gateway (DMZPlus mode so all traffic is directed to it) and has a public IP address. Es...
An update for anyone who may run into this. After posting here, I remembered that I had a AT&T Arris NVG599 in my parts bin. I took it out, reset it, and configured it in "Passthrough" mode for my RBR50. Guess what - NTP has been working since, and I have kept my RBR50 in router mode.
So, FURRYe38 , you were correct about it being an ISP/gateway issue. The AT&T Pace 5268AC gateway was the problem.
CrimpOn wrote:
Kandyman wrote:So it looks like the only way for me to get this working is to go change back to AP mode huh? This stinks. Good fiber speeds from AT&T but you pay for that with inflexibility in their gateways.
I don't have AT&T and cannot experiment with the exact steps recommended in that video, so I have no way to verify his claim. I would think that all of my devices would complain if they could not get a time sync when they boot up.
I am still confused about why the Orbi needs to be in AP mode when in the DMZ. That seems contrary to the advice I have seen for years about the three ways to solve the "Double NAT" issue: (1) ISP in bridge mode, (2) Orbi in AP mode, (3) Orbi in DMZ (in router mode).
Orbi will not be in the DMZ when I put it AP mode. That would be bad. I will take it out of the DMZ and have it just be be an AP for wireless clients, behind the gateway. NTP works fine in that configuration where the only NAT is the gateway.
An update for anyone who may run into this. After posting here, I remembered that I had a AT&T Arris NVG599 in my parts bin. I took it out, reset it, and configured it in "Passthrough" mode for my RBR50. Guess what - NTP has been working since, and I have kept my RBR50 in router mode.
So, FURRYe38 , you were correct about it being an ISP/gateway issue. The AT&T Pace 5268AC gateway was the problem.
Glad you found a working modem. I would try to replace the PACE one at some point.
Enjoy. :smileywink:
