Error Codes

Below is the table with error codes and their causes provided by GSurf:

Code	Model	Access mode
		When no errors occur
0	NO_SSL_ERROR	Error starting a UDP socket.
1	ERROR_OPEN_UDP_SOCKET	Error sending UDP data. Check if there is a firewall blocking UDP output on port 443 of Gsurf IPs.
3	ERROR_WRITE_UDP	Error receiving UDP data. Check if there is a firewall blocking UDP output on port 443 of Gsurf IPs.
4	ERROR_READ_UDP	Gsurf lib internal error. The message received from the server is corrupt. Try again. Notify Gsurf development.
5	ERROR_GET_SERVER_IP	Gsurf lib internal error. The message received from the server is corrupt. Try again. Notify Gsurf development.
6	ERROR_MESSAGE	Internal error in the Gsurf lib. The message received from the server is corrupt. Try again. Notify Gsurf development.
7	ERROR_GET_SERVER_PORT	Internal error in the Gsurf lib. The message received from the server is corrupt. Try again. Notify Gsurf development.
8	ERROR_CREATE_SSL_CONTEXT	Error creating SSL context. Notify Gsurf development.
9	ERROR_CONFIG	Error initializing library variables. Notify Gsurf development.
10	ERROR_OPEN_FILE	Error saving configuration files. Please check permissions on the specified directory.
11	ERROR_OPEN_CERTIFICATE	The certificate is present, but the file is corrupt. Generate a new certificate and install it on the device.
12	ERROR_DECODE_CERTIFICATE	This error possibly occurs because this certificate is not for this device, or due to hardware changes that affected the fingerprint generation. Generate a new certificate and install it on the device.
13	ERROR_INVALID_CERTIFICATE	Error verifying the certificate's private key. Generate a new certificate and install it on the device.
14	ERROR_OPEN_TCP_SOCKET	Error initializing a TCP socket.
15	ERROR_TCP_CONNECTION	Error establishing TCP connection. No internet connection or Gsurf IPs are blocked in the firewall.
16	ERROR_HANDSHAKE_SSL	Error during SSL handshake, may be caused by disconnection during the process, expired certificate, revoked certificate, unsupported cipher or untrusted CA. Check Gsurf server certificate and logs.
17	ERROR_CRITICAL_HADSHAKE_SSL	Error during SSL handshake, may be caused by disconnection during the process, expired certificate, revoked certificate, unsupported cipher or untrusted CA. Check Gsurf server certificate and logs.
18	ERROR_SSL_WRITE	SSL connection failed, possibly disconnected when sending data.
19	ERROR_SSL_READ	SSL connection failed, possibly disconnected when receiving data.
21	ERROR_MEMORY_ALLOCATE	Error allocating RAM memory, possible lack of RAM memory.
22	ERROR_SERVICE_CONNECT	Error connecting to target service. Check if the service is running or if the configured IP and port are correct.
26	ERROR_MALFORMED_IP	The IP entered for the connection function is in the wrong format.
27	ERROR_RFC1918 The IP	provided for connection function does not comply with RFC 1918 (only local network IPs are supported)
28	ERROR_NO_CERTIFICATE	Occurs when the certificate is not present. You must perform the certificate installation.
29	ERROR_NO_SSL_CONNECTION	SSL connection error occurs when trying to send/receive information without the connection being established. Make the connection.
31	ERROR_SAVE_CERTIFICATE	Unable to save the certificate on the device. Check whether there is write permission in the specified location.
32	ERROR_RECEIVE_CERTIFICATE	An error occurred during the process of receiving the certificate. Probably the OTP used is not valid or the activation key is not valid. You need to check if the OTP is valid and try again.
33	ERROR_DNS	Error resolving a DNS address. Possible lack of internet connection. Check internet connection and try again.
34	ERROR_OPEN_UDP_SOCKET	Error starting a UDP socket.
35	ERROR_SERVER_DEFINITION	Error setting the server address. Check internet connection. Check whether Gsurf IPs are allowed on the firewall. Try again.
36	ERROR_AUTHENTICATION	Error during the authentication process. It may be caused by wrong or out of sync token. Contact Gsurf to synchronize tokens.
37	ERROR_UNKNOWN_ERROR	Unknown error.
38	ERROR_EMPTY_MESSAGE	The message received from the server is empty and should be discarded.
39	ERROR_MOUNT	Error mounting the partition to save data to the device.
40	ERROR_TIMEOUT	Read timeout was reached with no response from the server. Check internet connection. Try again.
41	ERROR_INVALID_OTP	The OTP provided is in the wrong format. Check with Gsurf if the OTP is correct.