EMU Wi-Fi

Caltrain's electric trains have Wi-Fi service. Our diesel trains do not have Wi-Fi service. All trains operating north of San Jose Diridon Station will be electric after the launch of electrified service.

Caltrain has invested in a high-speed trackside network that should give you a smoother faster Internet experience than you may be used to on a train – even up to gigabit broadband speeds. You will be sharing the bandwidth with many other passengers and engaging in activities that use large amounts of bandwidth may negatively affect the online experience of other passengers. When using our network, please keep this in mind and be respectful of your fellow passengers.

Use Wi-Fi as long as you are on one of the electric Caltrain trains. There is no limit to how long you can use the onboard Wi-Fi.

To maximize the amount of onboard bandwidth available to all passengers, Caltrain may cap your bandwidth at a level where it makes for a better overall shared experience. In addition, our Wi-Fi provider utilizes a third-party web filtering service in order to restrict access to websites with objectionable content. Content filtering is not a perfect science and can at times incorrectly block a web site.

Caltrain Wi-fi is an open public network. Though significant effort is made to ensure privacy, this means that any device connected to the network could be exposed to malicious activity from another device. The core components utilize enterprise firewalls and cyber security software to prevent intrusion into the system and viewing user data. Like any public Wi-Fi network, passengers should take care to protect their personal data when undertaking any sensitive activities such as online banking. Users are encouraged to review the terms and conditions before connecting to the service.

Please see the tips below. We do not offer technical support for passengers experiencing difficulty with the network, but if these tips do not work, you may use our Feedback Form or contact Customer Service to let us know your experience so that we may work with our Wi-Fi internet vendor.

• Check that you’re trying to connect to “Caltrain_Wi-Fi” channel,  and not Caltrain Mgmt. or Caltrain Staff channels.  
• On your device: Try turning your Wi-Fi off and back on. 
• It is recommended that passengers use popular browsers like Chrome, Firefox, Edge and Safari to access the authentication and portal pages. Also, check that the latest version of these browsers and the device operating system are being used as Caltrain cannot guarantee that unsupported browsers will allow passengers to log in properly.
• Still cannot connect? Try choosing “forget this network” on your device Wi-Fi settings, before connecting again. 
• Check your laptop ‘network and internet settings’: You may have to turn off “random hardware address” option.  
• Check your Proxy settings on browser. You may have to turn off “Automatically detect settings” 
• If these actions don’t work you can use our feedback form on the Caltrain “Contact Us” page or contact Customer Service during business hours. When contacting us, please include:
  • Train number
  • Train car number you are sitting in, which is a four-digit number located at the end of the passenger compartment. 
  • Time of internet issue 
  • Last station passed, if known 
  • Device type used (Android/iOS/ Google phone, PC or Apple laptop, etc.) Make/model and OS version. 
• Please note, our Customer Service cannot offer technical support for the Caltrain Wi-Fi network, but can log your issue so that we can let our vendor know the date, time, and vehicle number you experienced the issue in.
  • Customer Service is available at 1 (800) 660-4287
  • Hours of Operation: Monday-Friday 7am-7pm
  • Weekends and Holidays: 8am-5pm

Caltrain does ask our Wi-Fi provider to block certain blacklisted websites, and this may result in an error.