Metatrader 4 not making webrequests properly on a linux server

External question — Stack Overflow Stack Exchange Author: Eqan Ahmad Original post: https://stackoverflow.com/questions/78143612 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. I'm currently hosting metatrader 4 on a linux server where the trading bot on the metatrader 4 performs webrequests. The same bot works fine on my own system and my friends system. But on the server it doesn't get anything from the webrequests. ( https://i.sstatic.net/mPVz3.png ) Environment Information: Ubuntu Linux Server by Contabo Servers MT4 running via wine on linux Tried so far I have enabled all webrequest options within the metatrader 4. I tried unblocking the port 443 using ufw but didn't get anything out of it. Tried these articles as well https://www.malibal.com/guides/how-to-open-ports-on-ubuntu/#:~:text=For%20example%2C%20if%20you%20want,need%20to%20open%20port%2022 https://linuxconfig.org/how-to-open-allow-incoming-firewall-port-on-ubuntu-22-04-jammy-jellyfish https://contabo.com/blog/how-to-setup-a-software-firewall-in-linux-and-windows/ https://www.malibal.com/guides/how-to-open-ports-on-ubuntu/#:~:text=For%20example%2C%20if%20you%20want,need%20to%20open%20port%2022 The following is the webrequest code which runs fine on all my personal systems but unfortunately not on contabo servers: int InternetGetFile(string url,string &content) { //--- Init content=NULL; //--- Create connection int httpconnect=0; int httprequest=0; int httpopen=Wininet::InternetOpenW("InternetGetFileMQL",0," "," ",0); int e=kernel32::GetLastError(); if(e==0) { bool flag=Wininet::DeleteUrlCacheEntryW(url); httprequest=Wininet::InternetOpenUrlW(httpopen,url,NULL,0,16|10,0); e=kernel32::GetLastError(); if(e==0) { //--- Define buffers uchar ch[512]; string temp=""; //--- Retrieve data from file int cnt=0; while(Wininet::InternetReadFile(httprequest,ch,512,cnt)) { //e=kernel32::GetLastError(); if(cnt<=0) break; temp=temp+CharArrayToString(ch,0,cnt); } //--- Store result content=temp; } } //--- Close connection if(httprequest>0) InternetCloseHandle(httprequest); if(httpopen>0) InternetCloseHandle(httpopen); //--- Get out and return error code return(e); } EDIT: I found something interesting that may help: I replaced the previous code and tried to use the inbuilt mql4 web request function //--- Call WebRequest function string method = "GET"; string headers = ""; int timeout = 5000; // Timeout in milliseconds (adjust as needed) char data[]; // No data to send char result[4096]; // Fixed-size array to hold response (adjust as needed) string result_headers; int request = WebRequest(method, url, headers, timeout, data, result, result_headers); // Check for successful request if (request == 200) { // Copy result to content string content = CharArrayToString(result); Print("Data collected"); } else { // Handle error (you may want to add more error handling) Print("Error: Web request failed with code ", request); } return request; I got these error pops enter image description here and funny thing is I added these URLs in the experts tab of the mt4 enter image description here

External answer — Stack Overflow Stack Exchange Author: Eqan Ahmad Original post: https://stackoverflow.com/a/78261172 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. I have resolved the issue. It has been found that Windows server or Ubuntu server running Wine doesn't support Wininet: https://learn.microsoft.com/en-us/troubleshoot/developer/browsers/development-website/wininet-not-supported-in-services So I would like to advice people facing a similar issue to use WebRequest which uses WinHTTP under the hood which is supported on Windows server and Ubuntu server.