Take a look at
jmeter.log file, it should contain more information regarding the cause of the error.
If this is your case you can i.e. increase it to 2 minutes by adding the next line to user.properties file (lives in "bin" folder of your network installation)
jpgc.repo.timeout=120000
JMeter restart will be required to pick the property up.
In other cases you might need to reach out to your Internet services provider or your corporate network admins to check if there is a limitation or restriction on their end.
More information: