I've tried to contact the technical support in every possible way (Live Chat Support, Phone Call Support, Email Support, and etc). but no one is answering calls or replying to the emails I sent. 

After being put on hold for hours and listening to COVID-19 precaution message on loop with no one to answer the call I come here to seek help. 

I have an Archer C80 Router with hardware version 2.20 that I purchased 3 months ago and recently it started rebooting on it's own and it reached to a point where I could not plug in the WAN cable because the router kept restarting endlessly. When I removed the WAN cable it was on and didn't restart. 

TP-Link gave me a refurbished router as a replacement for it. However, last week I bought a brand new C80 and It's been restarting once or twice a day by itself and I'm worried that this unit might have a problem too. 

- I'm using the original adapter

- The router is in well ventilated place so it is not overheating. 

- The router is connected to a surge protector. 

- The auto reboot option is off. 

- I have already factory reset the router twice. 

- I'm using the latest firmware.

- I connect 3-4 devices wirelessly and I have a secondary router connected to my main router (The main router is restarting on it's own).

Here's the router log. 

Exception:|2023-09-08 22:13:35|
Assertion failed: &pppParams == params || &ppp6Params == params, file ./ppp/pppLib.c, line 863
.->[404bfc08]->[404cdaec]->[4039c4d0]->[4051a154]->[40218ebc]->[40218bdc]->[404c2248]->[4046e6bc]->[4051fc4c]->[4051c144]->[40527adc]->[405278e4]
Exception:|2023-09-09  0:09:36|
Assertion failed: &pppParams == params || &ppp6Params == params, file ./ppp/pppLib.c, line 863
.->[404bfc08]->[404cdaec]->[4039c4d0]->[4051a154]->[40218ebc]->[40218bdc]->[404c2248]->[4046e6bc]->[4051fc4c]->[4051c144]->[40527adc]->[405278e4]
Exception:|2023-09-09  3:00:35|
Assertion failed: &pppParams == params || &ppp6Params == params, file ./ppp/pppLib.c, line 863
.->[404bfc08]->[404cdaec]->[4039c4d0]->[4051a154]->[40218ebc]->[40218bdc]->[404c2248]->[4046e6bc]->[4051fc4c]->[4051c144]->[40527adc]->[405278e4]
Exception:|2023-09-09  3:07:49|
Assertion failed: &pppParams == params || &ppp6Params == params, file ./ppp/pppLib.c, line 863
.->[404bfc08]->[404cdaec]->[4039c4d0]->[4051a154]->[40218ebc]->[40218bdc]->[404c2248]->[4046e6bc]->[4051fc4c]->[4051c144]->[40527adc]->[405278e4]
Exception:|2023-09-09 21:18:22|
Assertion failed: &pppParams == params || &ppp6Params == params, file ./ppp/pppLib.c, line 863
.->[404bfc08]->[404cdaec]->[4039c4d0]->[4051a154]->[40218ebc]->[40218bdc]->[404c2248]->[4046e6bc]->[4051fc4c]->[4051c144]->[40527adc]->[405278e4]
Exception:|2023-09-10 17:50:48|
Assertion failed: &pppParams == params || &ppp6Params == params, file ./ppp/pppLib.c, line 863
.->[404bfc08]->[404cdaec]->[4039c4d0]->[4051a154]->[40218ebc]->[40218bdc]->[404c2248]->[4046e6bc]->[4051fc4c]->[4051c144]->[40527adc]->[405278e4]
Exception:|2023-09-10 20:39:44|
Assertion failed: &pppParams == params || &ppp6Params == params, file ./ppp/pppLib.c, line 863
.->[404bfc08]->[404cdaec]->[4039c4d0]->[4051a154]->[40218ebc]->[40218bdc]->[404c2248]->[4046e6bc]->[4051fc4c]->[4051c144]->[40527adc]->[405278e4]
Exception:|2023-09-10 20:53:55|
Assertion failed: &pppParams == params || &ppp6Params == params, file ./ppp/pppLib.c, line 868
.->[404e2d78]->[404f0c3c]->[4039d5f0]->[4053d714]->[40218da0]->[40218ac0]->[404e53b8]->[40489e00]->[4054320c]->[4053f704]->[4054b09c]->[4054aea4]

Can anyone help me out?