MT5 installer proxy popup + MQL5.community authorization failed from netcup AS197540 VPS

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Hello,

I am experiencing a persistent connectivity problem with MetaTrader 5 / MQL5.community from a netcup root server.

The issue does not look like a local firewall, Windows Firewall, DNS, or hosts-file problem. It looks like my server IP, or possibly part of the netcup AS197540 range, may be blocked, filtered, rate-limited, or otherwise restricted by MQL5 / MetaQuotes / CDN systems.

Server / network details

  • Provider: netcup
  • ASN: AS197540 / netcup
  • Source IP: masked for privacy
  • OS: Windows Server
  • Exact IP: I can provide it privately to MQL5 / MetaQuotes staff if needed.

Symptoms

  • The MetaTrader 5 installer opens a proxy settings popup and cannot complete the installation.
  • Inside the MT5 terminal journal I see:

MQL5.community authorization failed

  • When opening www.mql5.com in Chrome from the server, I receive:

Access to www.mql5.com was denied HTTP ERROR 403

Hosts file check

I checked the Windows hosts file:

C:\Windows\System32\drivers\etc\hosts

There are no custom entries for MQL5, MetaQuotes, or MetaTrader. The hosts file is clean.

netcup firewall check

I also checked the netcup firewall configuration:

  • Only outgoing SMTP/mail traffic is blocked: TCP 25, 465, and 587.
  • Outgoing ICMP is allowed.
  • There is an implicit ACCEPT OUTGOING ANY rule.
  • Therefore outbound HTTPS / TCP 443 should be allowed.

Windows Firewall / HTTPS check

General HTTPS connectivity from the server works:

  • google.com:443 succeeds.
  • www.mql5.com:443 succeeds at TCP level.

However, the MQL5 / MetaQuotes CDN endpoints fail:

  • download.mql5.com:443 fails / times out.
  • download.terminal.free:443 fails / times out.

DNS resolution

download.mql5.com resolves to:

  • 194.164.179.33
  • 94.130.2.36

download.terminal.free resolves to:

  • 194.164.179.33
  • 94.130.2.36

Download test

The exact download test command was:

curl.exe -v -4 --connect-timeout 15 https://download.terminal.free/cdn/web/metaquotes.software.corp/mt5/mt5setup.exe -o C:\Users\Public\mt5setup.exe

Result:

  • Connection to 194.164.179.33:443 timed out.
  • Connection to 94.130.2.36:443 timed out.
  • Final error:

curl: (28) Connection timed out after 15000 milliseconds

Traceroute result

  • Traceroute to 194.164.179.31 completes successfully.
  • Traceroute to 194.164.179.33 reaches 78.140.169.102 and then times out.

Question

Could someone from MQL5 / MetaQuotes please check whether the netcup AS197540 range, or my specific server IP, is currently blocked, filtered, rate-limited, or restricted by MQL5 / MetaQuotes / CDN systems?

If the exact IP is needed, I can provide it privately to MQL5 / MetaQuotes staff.

This issue currently prevents:

  • MetaTrader 5 installation
  • MQL5.community authorization inside MT5
  • Access to MQL5 website/CDN services from the server
  • Potentially Market, VPS, Signals, and product-update access inside MetaTrader

Thank you very much for your help.

 

about error 403:
Summary: Installation Failed - Error 403 and more 

---------------------

about error 443: summary post  and post 

Summary: Installation Failed - Error 403 and more
Summary: Installation Failed - Error 403 and more
  • 2025.02.19
  • www.mql5.com
Many traders are using MQL5 VPS , and this VPS is having a lot of advantadges, for example - the traders do not lose activations when they  migrate/synhronize their MT4/MT5 environment to MQL5
 
atm49:


besides 403 issues that the moderator referred to; there are many threads on this site about netcap being blocked by mq due to suspicious activities happening on netcap servers in past. I think there is 0 chance of getting them to unblock any vps with that provider.

EDIT: after a quick search, it seems that all threads with netcap have been deleted.

 
Michael Charles Schefe #:

besides 403 issues that the moderator referred to; there are many threads on this site about netcap being blocked by mq due to suspicious activities happening on netcap servers in past. I think there is 0 chance of getting them to unblock any vps with that provider.

EDIT: after a quick search, it seems that all threads with netcap have been deleted.

netcup, not netcap.

Please note, nobody in moderators or admins team is wasting his time to delete thread without a valid reason.

 
Alain Verleyen #:

netcup, not netcap.

Please note, nobody in moderators or admins team is wasting his time to delete thread without a valid reason.

ahah! netcup. now a search does get results!

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