Internet Dropping Out Daily

[Askingforafriend]

My network setup had been working perfectly for about a year and a half on Telus Fiber. I had not made any network changes until late December when I experienced that first time the internet dropped out.

My setup: Using Cloudflare and Google DNS

Telus NOKIA ONT

• T3200M (WiFi Disabled)
  • Unmanaged Switch
    • Desktop
    • Laptop
    • Printer
  • AP/Switch (TP-Link Archer C2300)
    • Optik Box
    • TV
    • Wireless Clients

The first time I noticed the problem I was streaming on my TV and had the connection drop out. Checked my wifi on my phone and it showed no internet connection. I logged into the webUI on the T3200M and it showed the internet status as "connected". I checked the T3200M in my utility closet and the internet LED was green as well. I was able to verify my wired PC connection also had no internet connectivity.

I rebooted all my network gear and everything was up and running again... until the next day. Same issue, internet cuts out, says it is connected, and reboot.

I called Telus tech support and they said everything they saw said the connection was good. I suggested I would reset both my AP and the t3200M to factory default settings and leave the DNS settings default. 

The next time it happened I was working on my PC and noticed I was able to access Google, Gmail, Youtube, but nothing else that I could tell. It was the same with my wifi through the AP, strange right? So again I reset my gear and it was running. I called tech support again and they said my T3200M router might be the culprit and they would send me a new one. I suspected this could be the issue but I wasn't 100% convinced.

While I waited for the new router to arrive I wanted to confirm it was the router so I changed my network:

ONT

• Unmanaged Switch
  • T3200M (WiFi disabled)
    • PC
    • Laptop
  • TP-Link Router
    • Optik
    • TV
    • WiFi

This setup worked for a day and then the internet cut out again. This time it was both routers running separate WAN IPs losing connection at the same time. I called tech support and they were as helpful as every other time I called. Eventually they offered to send a tech to site and have a look.

Is there anything I can do to further troubleshoot the issue? I've replaced the Ethernet patch cable from the ONT to my network but I'm at a loss. It must be something that has changed on Telus' end since my network has had zero issues up until late December.

[Askingforafriend]

So I've installed the new T3200M that Telus sent me, as well as a Wifiplus AP. I'll give it a go and see if my problems go away. Mostly to just rule out my network gear as the culprit.

In the router system log I'm getting:

Kernel event

ICMPv6 RA: ndisc_router_discovery() failed to add default route.

This happens every 20 or so minutes. I can't find anything on what this might be related to.

Thoughts?

[Askingforafriend]

I've reset the T3200 to facotry defaults, had a tech to my house, and talked to an escalations manager saying "everything looks good on our end" They continue to claim this is on my end...

I was able to run tests during the internet outages. Occasionally I lose all internet connectivity and other times I still have IPv6 connection and am able to resolve IPv6 DNS requests. I was able to verify this with ping tests and traceroutes.

When traceroutes fail they manage to make it to a second or third hop:

1 1 ms <1 ms <1 ms 192.168.1.254
2 d198-53-87-174.abhsia.telus.net [198.53.87.174] reports: Destination host unreachable.

Tracing route to 1.1.1.1 over a maximum of 30 hops

1 <1 ms <1 ms <1 ms 192.168.1.254
2 104.205.69.182 reports: Destination host unreachable.

Simply unplugging and re plugging the WAN or rebooting the T3200 fixes the internet access.

What is going on?

[NFtoBC · Accepted solution]

When I experienced that trouble it was traced to a bad copper connection at the street. 

[Askingforafriend]

I am on FTTH and I've asked them to check my signal integrity. For whatever reason they will not accept there is a problem on their end and I'm at a total loss.

[-R47-]

I looks like it may be some sort of issue with ipv6, do you have connection drops if you disable ipv6?

[Askingforafriend]

I do get drop outs with IPv6 disabled in the WAN settings for the T3200.