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Any danger in configuring TP-Link AC-2300 router in DMZ mode behind Pace 5268 and opening all ports

... on Pace gateway? Will the TP-Link AC2300 router's firewall provide sufficient protection since it will now have a public ip? In this configuration, if I turn RG's wireless off, will the only way to access settings then be by directly connecting a pc via ethernet? Can I setup an additional router

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Possible solution to intermittent crashes?

I have U-verse 75mbps Internet and every 10-20 days, I completely lose internet access. The only remedy is to reboot every device (gateway, air tie extenders and most devices) AT&T has been out a couple of times, replaced the Pace gateway, and thoroughly checked the lines.Here's where I think the pr

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Router behind a router questions:

I know that this has been asked a hundred times and my guess is because everyone seems to have problems with this. I'm almost convinced at this point that AT&T purposely breaks this to discourage the practice. However, I've been known to be wrong a time or two. I've successfully done this setup with

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