1# HTTP Error Codes 2 3> **NOTE** 4> 5> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](errorcode-universal.md). 6 7## 2300001 Protocol Not Supported 8 9**Error Message** 10 11Unsupported protocol. 12 13**Description** 14 15This error code is reported if the input protocol version is not supported by the server. 16 17**Cause** 18 19The input protocol version is not supported by the server. 20 21**Solution** 22 23Specify a protocol version supported by the server. 24 25## 2300003 Incorrect URL Format 26 27**Error Message** 28 29URL using bad/illegal format or missing URL. 30 31**Description** 32 33This error code is reported if the URL format is incorrect. 34 35**Cause** 36 37The format of the input URL is incorrect. 38 39**Solution** 40 41Specify a URL of the correct format. 42 43## 2300005 Failed to Resolve the Domain Name of the Proxy Server 44 45**Error Message** 46 47Couldn't resolve proxy name. 48 49**Description** 50 51This error code is reported if the domain name of the proxy server cannot be resolved. 52 53**Cause** 54 55This error code is reported if the URL of the proxy server is incorrect. 56 57**Solution** 58 59Specify a URL of the correct format. 60 61## 2300006 Failed to Resolve the Domain Name of the Host 62 63**Error Message** 64 65Couldn't resolve host name. 66 67**Description** 68 69This error code is reported if the domain name of the host cannot be resolved. 70 71**Cause** 72 731. The input URL is incorrect. 74 752. The network connection is abnormal. 76 77**Solution** 78 791. Specify a URL of the correct format. 80 812. Rectify network connection faults. 82 83## 2300007 Failed to Connect to the Server 84 85**Error Message** 86 87Couldn't connect to server. 88 89**Description** 90 91This error code is reported if the server connection failed. 92 93**Cause** 94 95The format of the input URL is incorrect. 96 97**Solution** 98 99Specify a URL of the correct format. 100 101## 2300008 Invalid Data Returned by the Server 102 103**Error Message** 104 105Weird server reply. 106 107**Description** 108 109This error code is reported if the data returned by the server is invalid. 110 111**Cause** 112 113The server encounters an error and returns data in non-HTTP format. 114 115**Solution** 116 117Check the server implementation. 118 119## 2300009 Access to Remote Resources Denied 120 121**Error Message** 122 123Access denied to remote resource. 124 125**Description** 126 127This error code is reported if the access to remote resources is denied by the server. 128 129**Cause** 130 131The access to the specified resource is denied by the server. 132 133**Solution** 134 135Check whether access to the requested resource is allowed. 136 137## 2300016 HTT2 Framing Layer Error 138 139**Error Message** 140 141Error in the HTTP2 framing layer. 142 143**Description** 144 145This error code is reported if an error occurs on the HTTP2 framing layer. 146 147**Cause** 148 149HTTP2 is not supported by the server. 150 151**Solution** 152 153Capture and analyze packets to check whether HTTP2 is supported by the server. 154 155## 2300018 Incomplete Data Returned by the Server 156 157**Error Message** 158 159Transferred a partial file. 160 161**Description** 162 163This error code is reported if data returned by the server is incomplete. 164 165**Cause** 166 167This problem is probable due to server implementation. 168 169**Solution** 170 171Check the server implementation. 172 173## 2300023 Failed to Write Received Data to a Disk or Application 174 175**Error Message** 176 177Failed writing received data to disk/application. 178 179**Description** 180 181This error code is reported if an error occurs while writing received data to the disk or application. 182 183**Cause** 184 185The application does not have the data write permission. 186 187**Solution** 188 189Check the permissions granted to the application. 190 191## 2300025 Failed to Upload Data 192 193**Error Message** 194 195Upload failed. 196 197**Description** 198 199This error code is reported if data upload fails. 200 201**Cause** 202 203The file is too large or the network is faulty. The server may reject the **STOR** command if FTP is used. 204 205**Solution** 206 207Check the file size and network status. 208 209## 2300026 Failed to Open or Read Local Data from a File or Application 210 211**Error Message** 212 213Failed to open/read local data from file/application. 214 215**Description** 216 217This error code is reported if an error occurs while opening or reading local data from a file or application. 218 219**Cause** 220 221The application does not have the data read permission. 222 223**Solution** 224 225Check the permissions granted to the application. 226 227## 2300027 Insufficient Memory 228 229**Error Message** 230 231Out of memory. 232 233**Description** 234 235This error code is reported if the memory is insufficient. 236 237**Cause** 238 239This error code is reported if the memory is insufficient. 240 241**Solution** 242 243Check the system memory. 244 245## 2300028 Operation Timeout 246 247**Error Message** 248 249Timeout was reached. 250 251**Description** 252 253This error code is reported if the operation times out. 254 255**Cause** 256 257The TCP connection or the read/write operation times out. 258 259**Solution** 260 261Rectify network faults. 262 263## 2300047 Maximum Redirections Reached 264 265**Error Message** 266 267Number of redirects hit maximum amount. 268 269**Description** 270 271This error code is reported if the number of redirections reaches the maximum. 272 273**Cause** 274 275Redirection is performed too frequently. 276 277**Solution** 278 279Check the server implementation. 280 281## 2300052 No Content Returned by the Server 282 283**Error Message** 284 285Server returned nothing (no headers, no data). 286 287**Description** 288 289This error code is reported if no content is returned by the server. 290 291**Cause** 292 293This problem is probable due to server implementation. 294 295**Solution** 296 297Check the server implementation. 298 299## 2300055 Failed to Send Network Data 300 301**Error Message** 302 303Failed sending data to the peer. 304 305**Description** 306 307This error code is reported if an error occurs while sending network data to the peer end. 308 309**Cause** 310 311This problem is probable due to a network fault. 312 313**Solution** 314 315Rectify network faults. 316 317## 2300056 Failed to Receive Network Data 318 319**Error Message** 320 321Failure when receiving data from the peer. 322 323**Description** 324 325This error code is reported if an error occurs while receiving network data from the peer end. 326 327**Cause** 328 329This problem is probable due to a network fault. 330 331**Solution** 332 333Rectify network faults. 334 335## 2300058 Local SSL Certificate Error 336 337**Error Message** 338 339Problem with the local SSL certificate. 340 341**Description** 342 343This error code is reported if the local SSL certificate is incorrect. 344 345**Cause** 346 347The format of the SSL certificate is incorrect. 348 349**Solution** 350 351Check the format of the SSL certificate. 352 353## 2300059 Failed to Use the Specified SSL Cipher Algorithm 354 355**Error Message** 356 357Couldn't use specified SSL cipher. 358 359**Description** 360 361This error code is reported if the specified SSL cipher algorithm cannot be used. 362 363**Cause** 364 365The system does not support the cipher algorithm negotiated between the client and server. 366 367**Solution** 368 369Capture and analyze packets to check whether the cipher algorithm is supported. 370 371## 2300060 Incorrect SSL Certificate or SSH Key of the Remote Server 372 373**Error Message** 374 375SSL peer certificate or SSH remote key was not OK. 376 377**Description** 378 379This error code is reported if the SSL certificate or SSH key of the remote server is incorrect. 380 381**Cause** 382 383It is probable that the server identity verification fails because the certificate has expired. 384 385**Solution** 386 387Check whether the certificate is valid. 388 389## 2300061 Unrecognized or Incorrect HTTP Encoding Format 390 391**Error Message** 392 393Unrecognized or bad HTTP Content or Transfer-Encoding. 394 395**Description** 396 397This error code is reported if the HTTP encoding format cannot be identified or is incorrect. 398 399**Cause** 400 401The HTTP encoding format is incorrect. 402 403**Solution** 404 405Check the server implementation. Currently, only gzip encoding is supported. 406 407## 2300063 Maximum File Size Exceeded 408 409**Error Message** 410 411Maximum file size exceeded. 412 413**Description** 414 415This error code is reported if the maximum file size is exceeded. 416 417**Cause** 418 419The downloaded file is too large. 420 421**Solution** 422 423Check the server implementation. 424 425## 2300070 Insufficient Server Disk Space 426 427**Error Message** 428 429Remote disk full or allocation exceeded. 430 431**Description** 432 433This error code is reported if the server disk space is insufficient. 434 435**Cause** 436 437The server disk is full. 438 439**Solution** 440 441Check the server disk space. 442 443## 2300073 Uploaded File Already Exists 444 445**Error Message** 446 447Remote file already exists. 448 449**Description** 450 451This error code is reported if the server finds that the uploaded file already exists. 452 453**Cause** 454 455The uploaded file already exists. 456 457**Solution** 458 459Check the server for files that already exist. 460 461## 2300077 No SSL CA Certificate or Access Permission 462 463**Error Message** 464 465Problem with the SSL CA cert (path? access rights?). 466 467**Description** 468 469This error code is reported if the SSL CA certificate does not exist or the access permission is not available. 470 471**Cause** 472 473The SSL CA certificate is not available or the access permission is not granted. 474 475**Solution** 476 477Check whether the SSL CA certificate exists or the access permission is granted. 478 479## 2300078 URL Requested File Not Found 480 481**Error Message** 482 483Remote file not found. 484 485**Description** 486 487This error code is reported if the file requested by the specified URL does not exist. 488 489**Cause** 490 491The file requested by the specified URL does not exist. 492 493**Solution** 494 495Check whether the file requested by the specified URL exists. 496 497## 2300094 Identity Verification Failed 498 499**Error Message** 500 501An authentication function returned an error. 502 503**Description** 504 505This error code is reported if identity verification fails. 506 507**Cause** 508 509The specified identity verification field does not match that on the server. 510 511**Solution** 512 513Check whether the specified identity verification field matches that on the server. 514 515## 2300999 Unknown Error 516 517**Error Message** 518 519Unknown Other Error. 520 521**Description** 522 523This error code is reported if an unknown error occurs. 524 525**Cause** 526 527An unknown error occurs. 528 529**Solution** 530 531Try again or contact technical support. 532