Have problem with the Email and auto-security issue

[Catapult]

why is your router renewing IPs daily

This is quite common among many ISPs. These providers require a dynamic IP address be used. This is to prevent the customer trying to run major business operations that require a static IP address such as server management off a simple residential internet connection (they want them to take out the more expensive business account option). Thus, a new IP address is assigned whenever a new connection is established, which will happen on dropout/re-connection or modem-powercycle.

If the internet drops daily, this may be a sign of poor noise margins on the copper line (presuming ADSL) or other tolerance levels among personal equipment. If this is happening inconveniently frequently, contact your ISP so as to diagnose an issue/fault and/or request stability.

[Coldfire]

Dynamic IPs are also to protect privacy by making the connection harder to trace. And about the security token... it's almost like SE wants to force us to use them. There's only trouble if you dont own one of these :/

[Geesus]

This is quite common among many ISPs. These providers require a dynamic IP address be used. This is to prevent the customer trying to run major business operations that require a static IP address such as server management off a simple residential internet connection (they want them to take out the more expensive business account option). Thus, a new IP address is assigned whenever a new connection is established, which will happen on dropout/re-connection or modem-powercycle.

If the internet drops daily, this may be a sign of poor noise margins on the copper line (presuming ADSL) or other tolerance levels among personal equipment. If this is happening inconveniently frequently, contact your ISP so as to diagnose an issue/fault and/or request stability.

Well not sure which ISPs have made this change but I know Comcast and Verizon do not. I always have the same IP assigned by my Linksys to my PC and assigned from my ISP to my router.

Yes noise and or signal loss through degrigated lines or a poor SNR all kinds of external non-consumer issues can occur. (Was a line tech for 3 years for Charter and Comcast) but if it's only related to FFXIV, there something else occuring. If all other online experiences and online games don't have this issue, you will need to reevaluate.