Over the last month, I have been getting intermittent 524 errors when trying to load my site. I use manageWP as well and get downtime notifications too. They only last a min or less sometimes.
What steps have you taken to resolve the issue?
I have checked my cloudflare rules to make sure i’m not blocking anything I shouldn’t be. I have called my hosing site, but they keep telling me that the server has had no downtime.
Yes it works right now. And works most of the time, but since early December I’ve been getting intermittent downtime notifications from my monitoring service ManageWP and yesterday I happened to be at a computer when it went down and saw the 524 error come through on my browser.
Trying to figure out why this is happening all of a sudden. My hosting site says the server and my site logs do not show that the site has gone down at all, so they are having me look at my cloudflare setup.
Wonder if this service is allowed by it’s IP address(es) to connect to your zone at your Cloudflare account (IP Access Rules).
Just in case as it might get tirggered by the actions due to the unknown frequency checks if the domain is “online” and “up” or not
Hmm I guess that could be it for the ManageWP part. Not sure why after a year I would all of a sudden be running into that issue though, but I can at least try to add ManageWP to my rule list.
That doesn’t explain why yesterday I was getting the 524 error.
You mentioned getting a JS Challenge. I’ve heard a few people say this to me over the last couple of days. I haven’t changed anything on my cloudflare account so I’m not sure why this would be happening and I can’t replicate it to know what it looks like.
I do have a manage challenge WAF set up for anybody outside of certain countries to prevent a lot of bad traffic from accessing my site, but not sure why people I know inside the US are getting this now.
You should be able to see the challenged or blocked event under the Security tab → Events at Cloudflare dashboard for your zone and know exactly which security option was triggered. Could be Managed Rules my best guess, otherwise Bot Fight Mode or Browser Integrity Check.
For help for my case as I got JS Challenge, lookup for country Croatia using Filter.
Bot Fight Mode / Super Bot Fight Mode (if on paid plan)
Browser Integrity Check
Custom WAF rule which would challenge everyone except visitors from e.g. your home country?
I do have both 1 & 2 on (free plan only options).
For WAF rules I have it set up to manage challenge for everybody outside of the US and Canada. I run a fantasy sports site, so not a lot of legit traffic comes from outside those two countries.
You said you are from Croatia? That would make sense that you are getting it. I know somebody that lives in Georgia (US) that got it just a couple days ago, that one is very confusing to me.
Do you think I should turn off Bot Fight Mode and Browser Integrity? That seems like I would get a lot of bad traffic entering my site all of a sudden no?
I’m contacting their support as well now that you mention them being blocked.
Still doesn’t give me an answer as to why the 524 error was coming through yesterday and my hosting plan was saying nothing was showing up on their end in the log files.
Could you confirm it’s working now? 
