Yesterday 4/26/2020 I tried to access my Archer c4000 to do a firmware upgrade, and mistakenly tried using the account password instead of the router password, and of course couldn't get in, so I ended up having to do a reset of the router.  I set it up according to the setting I saved in a password protected Word doc created when I first set it up back last August when I bought it.  The firmware upgraded successfully, but suddenly I had no connectivity.  I plugged my computer directly into the modem and was able to verify that the modem was working just fine, but when I added the router back I had no connectivity wired or wireless, so I called TP-Link tech support, and the tech who I reached basically led me in circles three or four times, and since I'm an IT guy and familiar with good and bad support finally hung on on them, the support was THAT bad!  Now I have a router that won't work and I find that TP-Link phone support is down today for scheduled maintenance.  I live in a cellular dead spot, so I have to use a cell tower to even get cell service in my house, which means that my wife and currently can't use our cell phones, our iPad or laptop, or our wired computer connection.  I'm currently 30 minutes away from home sending this message at work where I do have connectivity, which is the only way that I can send this message.  Can anyone please help me with this issue?