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]

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?