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 If you experience trouble reaching LBL's network from outside, the IT Help Desk is available to help you. Before requesting help, please complete the following troubleshooting steps. This will make it a lot faster for us to identify and resolve your problem. Please note that LBL IT has no ability to resolve issues with your Internet Service Provider (ISP).

  1. Visit https://speedtest.net  this will allow you to test your path to the internet. If this indicates trouble, then your home internet connection may be the problem.  Try contacting the support for your home internet.

  2. Visit https://www.slac.stanford.edu this will test your path to ESnet, LBL's internet provider.  If this indicates trouble, the problem may be LBL's provider.  You may contact LBL support to ask if this is the case.

  3. Visit https://identity.lbl.gov  this will test your path to LBL's network.  If steps 1 and 2 work fine, then this may indicate that LBL's network is having a problem. You may contact LBL support to say you are having this problem.

  4. If steps 1, 2, and 3 are all fine, but your VPN, remote desktop, or other connection to LBL is failing, it is possible that your system has been blocked from LBL's network due to cyber security issues. To see if this is the case,

    1. If you don't know your IP address, visit http://connect.lbl.gov/. This site will tell you your IP and ISP info. Note that this site may require you to disable ad-blockers in order to function.

    2. Go to https://onestop.lbl.gov/onestop/. Enter your hostname, IP, or MAC address

    3. If onestop.lbl.gov reports that you are blocked, contact the IT Help Desk ([email protected], x4357) to get help.

  5. If none of these solve your problem, please contact the IT Help Desk (help@lbl.gov, x4357). Be sure to indicate that you tried the above tests, and include the name of your Internet Service Provider.