EERo Router keeps glitching , how do I sort this quickly

[DrVMPS]

My router keeps just not working for around 20/30 min periods 

3 times in 7 days now. 
by the time I get through to someone and they “run the test” they tell me they have “fixed the problem for me” 

they clearly haven’t. 
How do I get them to send me a router without losing my mind at customer service. 
I’ve just had a complaint where they lied to me completely dismissed after 30 days! So how do I get this to happen. Any help greatly appreciated

you can’t label your message with “bad customer service” of course not 🤣  

[Michelle-TalkTalk]

Hi,

If you remove the eero and connect a device wired to the ONT does the connection work? This would just help us to confirm if the issue lies with the eero itself and not the actual connection to the property.

Michelle

[DrVMPS]

I’m thinking ONS are the lights on the unit on the wall that the engineer fitted? If so they stay the same three green lights. 
the router goes red.  If I restart it works for a few seconds and the. Goes off again. The eero light goes solid red. 

[DrVMPS]

Yes! It’s the first thing the “technical team” ask when you ring. 
it fixes it self eventually. When I restart it works for minutes and then Goes off again. The problem fixes itself after a while. Last night it was around 25 minutes. I restarted it 3 times and gave up. I was in bed when everything started to work again. The lights on the unit that comes into my house remain green 

[Michelle-TalkTalk]

Hello,

Can I check, have you tried resetting the eero and then re-setting it back up again?

Thanks

Michelle

[DJI_MINI_2_SE]

Do the lights on the ONT change when the glitch happens? 

Does the light on the router change when the glitch happens?