Error 522 Connection timed out Cloudflare with windows server - dns

Error 522 Connection timed out Cloudflare with windows server
I tried many solutions but there is no one solve this issue
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Error 789 when trying to establish VPN connection from Windows 10 to Netgear V7610

I've been trying to establish a VPN between my computer and this V7610 router for quite some time, and getting error 789 "The L2TP connection attempt failed because the security layer encountered a processing error during initial negotiations with the remote computer"
I think the modem/router is configured ok, because I can establish a VPN from my iPhone.
I've tried to use exactly the same settings, L2TP/IPsec, preshared key.
I've enabled the additional Authentication protocols in the Security options.
I've edited the registry key AssumeUDPEncapsulationContextOnSendRule.
All updates are current, so the dodgy windows update that affected VPN's should not be an issue.
What would be the next step in diagnosing the problem....
Thanks 🙏🙏

504 error on nodejs sails API server randomly across all endpoints

we have sails js as an API server and intermittently we are facing 504 upstream timed out the issue, the call was going till Nginx from there its throwing upstream timeout, there is no log coming on the application server, and it is happening across all the APIs intermittently not all the time, and the traffic on server is very low i.e. 5-10 requests per minute and there is no heavy computation going on, so not sure how can I debug this issue. this is a very random issue. also, there are No server restarts or any other errors on application logs. it's running fine on PM2. we are using an AWS EC2 instance. current timeout is 60 seconds but none of our APIs takes more than 500 milliseconds. we are using the node 6.6 version as it is a legacy monolith app so can not upgrade it due to multiple dependencies and no single owner. and requests are passing through the load balancer to NGINX but some time does not reach the application server. also, the instance size is quite bigger in terms of CPU and memory and traffic is extremely low. this is a very random behavior not specific to API. sometimes it can happen 1 out of 10 sometimes 2 out of 5 requests can through a gateway timeout issue.
some of the logs from Nginx are below-
[error] 31688#31688: *38998779 connect() failed (110: Connection timed out) while connecting to upstream, client 10.X.X.X
2022/04/22 16:36:37 [error] 31690#31690: *38998991 connect() failed (110: Connection timed out) while connecting to upstream, client: <server_ip>, server: <DNS_URL>
guys I have tried almost all the things from StackOverflow but nothing helping me, so please help me to find the root cause so I can mitigate the issue

CoucbDB Ubuntu 14 Azure Socket Connection Timeout error

I have couchdb running on a Linux Ubuntu 14.04 VM and a .net Web application running under Azure Web Apps. Under our ELMAH logging for the web application I keep getting intermittent errors:
System.Net.Sockets.SocketException
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond [ipaddress]:5984
I've checked the CouchDB logs and there isn't a record of those requests so I don't believe it's hitting the CouchDB server, I can confirm this by looking at the web server logs on Azure and see the Error 500 response. I've also tried a tcpdump however with little success (another issue logging tcpdump to a separate disk keeps failing due to access denied)
We've previously ran CouchDB on a Windows VM with no issues so I wonder if the issue relates to the OS connection settings for tcp and timeouts
Anyone have any suggestions as to where to look or what immediately jumps to mind?

NGINX | recv() failed (104: Connection reset by peer) while reading response header from upstream

I have been getting this error message and have tried almost everything i found on internet that says to fix this issue, but I've had no sucess :(
recv() failed (104: Connection reset by peer) while reading response header from upstream
I am using WordPress on a VPS, with 8-10 domains on the same WordPress install. For all the other sites I've seen no problem but for the master site of WordPress install whenever i goto any page, I get 502 Bad Gateway
None of my pages are working. From what i can see whenever any page on site is opened then PHP-FPM crashes with below error:
child 991195 exited on signal 11 (SIGSEGV) after 18.490300 seconds from start
and this thing keep on happening every time page is opened on this site.
Please help me with a full proof way of identifying the root cause with this issue and on how to fix this.
Many Thanks for your help.

FileZilla Connection timed out, Error Connecting to Server

I am having an issue with FileZilla, when I try access my FTP account, I get this:
Status: Connecting to xxx.xxx.xxx.xxx:xx (Ip adds:port)
Error: Connection timed out
Error: Could not connect to server
Status: Waiting to retry...
Status: Connecting to (Ip adds:port)
Error: Connection timed out
Error: Could not connect to server
This was working fine till yesterday. It works on another pc, but its not working onn my pc now. I tried disabling Windows Firewall (as I am using Windows 8 OS). Also I completely reinstalled FileZilla, still that didn't do it. Is there anything more I can try?
I was connected to the Internet from another Laptop, with sharing the internet connection. So there was the problem, it had restricted to access the ports. When I connected directly to the Internet the problem was solved.
I had a similar issue. Turned out I was using an incorrect protocol to login to the ftp server. The ftp server was ssh secured. Selecting SFTP option instead of FTP worked for me.
https://vincent254.wordpress.com/2015/03/16/what-to-do-incase-you-get-this-filezilla-connection-error/
You might need to write the host in this format
ftp.example.com
This works if you are having the following error as well
ECONNREFUSED - Connection refused by server
Change Your Internet Connection then connect FileZilla
thanks

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