When using W5100-based network boards under Arduino, it's best to keep an eye on the consistency of the software and drivers involved, and whether you need to update them in time to avoid any failures. Here are the sharing experiences from friends of the Forum.
"[Test] Bluetooth, apc220, W5100 Test Experience"
From the "Big can odd" forum http://www.dakeqi.com/forum.php?mod=viewthread&tid=417&extra=page%3D1
"Now the W5100 has been the purchase of the third network module, because the original Arduino very little, so different manufacturers out of the module is not compatible, has not been tested successfully, so in the game to the Pachubu site transmission data has not been achieved, after testing, Discovery is Arduino software version of the driver in the mischief, because the Arduino software each time using the latest version, but still the old version of the driver, so incompatible, the original driver to download, reuse the new version of the drive, so successful. ”
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From "Geek Workshop": http://www.geek-workshop.com/forum.php?mod=viewthread&tid=682
"Today, using the W5100 Ethernet expansion board, with Arduino Uno, use the official example webserver for testing." The discovery program just downloads in, the setting address 192.168.1.177 may ping the pass, the webpage can also open. However, after the power is reconnected, the ping is disconnected and the Web page cannot be opened. To be baffled.
By careful study, we find that ... Because I am using the Uno download is Arduino 0022 ide uno bootloader, this bootloader has a problem ... The downloaded program will not start after the reboot. Replaced with the Arduino 1.0 on the Uno of the bootloader, everything is normal .... It seems Arduino official upgrade so fast, but also keep the bug .... Remind again ... Arduino 0022 Uno with bootloader is a major problem, please replace it with Arduino 1.0 Arduino Uno. ”
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Thanks to the great forum friends to share the power, because Arduino related software and drive update faster, everyone in the use of W5100 Network board, you may also wish to pay attention to ~ More information, welcome to visit our official blog and Weibo (see left column) ~ Also welcome your comments to share experience ~