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Daily FW.WANATTACK DROP logs

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Daily FW.WANATTACK DROP logs

At least once a day (often twice) my home wifi completely goes out. Network completely disappears from the long list of available networks, and does not come back on for 2-3 minutes. It happens at the same time everday too, for the same length of time. After digging in my wireless gateway, I have found the following logs:

 

I. System logs (the same 2 below each day, for the last 3 days)

[IGD][4198]: Add Port mapping ...

[IGD][4231]: Delete Port mapping (null):

 

II. Event Logs (the same 2 below each day, for a solid month)

[Dhcpc][2164]: erouter0 T1 Expired, Enter Renew State

[Dhcpc][2164]: erouter0 got new IP [xx.xx.xx.xx]  

 

III. Firewall Logs (the same 3 below each day, for a solid 3 months)

FW.IPv6 INPUT drop,   xx attempts

FW.IPv6 FORWARD drop,  xxx attempts

FW.WANATTACK DROP,   xxx attempts

 

MY QUESTIONS:

1. Can someone clearly and concisely define the above Logs?

2. Is there anything of concern I should call in for?

3. Does any of the above relate to my daily, on-the-dot outages, and, if so, is there anything I can do to stop it?

 

Thank you for your help.