Error Upgrading AMP

Tried Upgrading AMP and now I can’t connect to the web interface or any games, connecting to the console shows everything running, but when I try to upgrade from the terminal I get the following

ampinstmgr --nocache upgradeall
[Info/1] AMP Instance Manager v2.6.4 built 14/11/2025 00:13
[Info/1] Stream: Mainline / Release - built by CUBECODERS/buildbot on CCL-DEV
[Info/1] Upgrading instance ADS01
[Error/7] HttpRequestException
[Error/7] [0] (HttpRequestException) : Resource temporarily unavailable (cdn-downloads.c7rs.com:443)
[Error/7] at Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
at Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at Net.Http.HttpConnectionPool.AddHttp11ConnectionAsync(QueueItem queueItem)
at Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)
at Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at Net.Http.HttpClient.GetStringAsyncCore(HttpRequestMessage request, CancellationToken cancellationToken)
at ModuleShared.VersionManifest.FetchAsync(String forPlatform)
[Error/7] SocketException
[Error/7] [1] (SocketException) : Resource temporarily unavailable
[Error/7] at Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
at Net.Sockets.Socket.g__WaitForConnectWithCancellation|285_0(AwaitableSocketAsyncEventArgs saea, ValueTask connectTask, CancellationToken cancellationToken)
at Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
[Error/7] HttpRequestException
[Error/7] [0] (HttpRequestException) : Resource temporarily unavailable (cdn-downloads.c7rs.com:443)
[Error/7] at Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
at Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at Net.Http.HttpConnectionPool.AddHttp11ConnectionAsync(QueueItem queueItem)
at Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)
at Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at Net.Http.HttpClient.GetStringAsyncCore(HttpRequestMessage request, CancellationToken cancellationToken)
at ModuleShared.VersionManifest.FetchAsync(String forPlatform)
[Error/7] SocketException
[Error/7] [1] (SocketException) : Resource temporarily unavailable
[Error/7] at Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
at Net.Sockets.Socket.g__WaitForConnectWithCancellation|285_0(AwaitableSocketAsyncEventArgs saea, ValueTask connectTask, CancellationToken cancellationToken)
at Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
[Error/7] HttpRequestException
[Error/7] [0] (HttpRequestException) : Resource temporarily unavailable (cdn-downloads.c7rs.com:443)
[Error/7] at Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
at Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at Net.Http.HttpConnectionPool.AddHttp11ConnectionAsync(QueueItem queueItem)
at Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)
at Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at Net.Http.HttpClient.GetStringAsyncCore(HttpRequestMessage request, CancellationToken cancellationToken)
at ModuleShared.VersionManifest.FetchAsync(String forPlatform)
[Error/7] SocketException
[Error/7] [1] (SocketException) : Resource temporarily unavailable
[Error/7] at Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
at Net.Sockets.Socket.g__WaitForConnectWithCancellation|285_0(AwaitableSocketAsyncEventArgs saea, ValueTask connectTask, CancellationToken cancellationToken)
at Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
[Error/7] Upgrade failed: Failed to find a release matching the specified version: Mainline/2.6.4.2 - This version may no longer be available to download, you should update to a newer version.

Your system is having some issues reaching the CubeCoders CDN.
On Linux you can double check via these commands:
nslookup cdn-downloads.c7rs.com
Shows that the CDN’s DNS records are resolvable.

ping cdn-downloads.c7rs.com
Shows that your system can route to the CDN