Email....repeating over and over "Sign in again"

Yes, it is Cox webmail. I will try that. 

I am using www.cox.com then this comes up and I sign in 

Cox email login (cox.net)

mycox.email.net

Sometimes it might be ok for a few minutes but other times it keeps rolling over and 

over again. 

I am going to ask you some questions to try to isolate the problem.

1. Does it happen if you login with a different device, like you phone or a different computer?
2. What do you have for Antivirus? Do you have a plugin installed for it at the top right corner of the browser?
3. Have you tried deleting your temp files and cookies?
4. Have you tried a different browser like chrome? Or if using chrome, try Edge.

It also happens on my laptop but not on my iphone. I have AVG and they have 

already gone through my computer and said its Cox. Yes, I have deleted files

and cookies. I have tried Google Chrome & Firefox. I have called HP and they said

its not their problem either along with Cox. Plug in? That I don't know but I 

will check. Thanks again! 

The only device I have plugged into my computer is a file that has my business 

letters on it. It doesn't look like I have any extensions when I went on Microsoft.

Do you have AVG on both your computers? If so, try booting into safe mode with networking by using the instructions below. See here for more info. That should temporarily remove AVG and all side programs. See if it happens then.

1. At the first screen on restart, before the HP or Windows logo appears, press the f8 key repeatedly.
2. When prompted, select the Safe Mode with Networking option.

That's absolutely a great idea, VPN's hide you, so mail systems, may deny access. 

I have tried that but it doesn't work. Do you think I should try a different security system?

Or delete everything on my computer and start all over again. I am at my wits end, I am 

ready to get rid of Cox. Thank you for taking the time to help me.

I am no expert like some of the people on here. So take anything I suggest with a grain of salt. I have all Mac or apple environment. A while back I had something similar to yours. Like I said I turned off the VPN and it helped. It did not stop it all the time. What I figured out is that Apple has been doing updates at a rate I have never seen before, in the last year I think I have had 3 or 4. I am sure that no one else is keeping up with the rapid change's Apple is making in software. Hence I think some of it is Apple and some of it is in the cox email software.  I would never do a total wipe of my computer and start from scratch. You need to find someone in Cox upper level who understands what you are going thru and design a path to fix it or at least help you on who to go too. What's funny is I hardly ever have any trouble with imac's or Mac books it is mainly with iPad's now at least twice a week I have to do the 2 factor thingy on all ipads to keep them where I can check my mail. I have went thru and corrected everything I know to cause clashes and I know think it's a two party problem.

Somebody here, at Cox upper level, or computer software will find a solution. The problem is how long is it going to take.

Glenee, Thank you.....I will try again.

Your absolutely right, how long will it take? Its been at least 2 months maybe

3. Everyone keeps blaming someone else. And they make me do the same

thing every time I call!!!! 

What security system are you using? does it have an EMAIL scanner? If so, try disabling it temporarily?

I have tried that the same thing happens unfortunately. 

I usually always log in with just my user name and do not add the @cox.net

I am not enrolled in two step, but thanks for the suggestion.

The fact that it happens on multiple PC negates a PC/malware issue IMO. It doesn't seem to happen on the phone so it makes me think it's a network issue of some kind. Does OP(Travel) have a hardware VPN or something from work hooked up? Does it happen on Cox.com and other HTTPS sites?

Could be an infected router...

I wouldn't go that far. Router firmware infection is pretty rare. I am thinking something to do with Cox security if OP has a Panoramic gateway.

I am in my email and then the pop up comes up, it rolls over to a blank white screen and then

my email comes back. Sometimes it continues to happen and it will not stop. If I am writing and email and it happens, I lose the entire email. Hope that helps.  

I also just ran a "deep scan" and it was ok..... is this crazy or what???