When I upgraded from 6.x to 7.0.2, I was able to get the access to the Marketplace working by putting these lines in the SETENV.BAT file:
set CATALINA_OPTS=-Dhttp.proxyHost=my-company-proxy %CATALINA_OPTS%
set CATALINA_OPTS=-Dhttp.proxyPort=80 %CATALINA_OPTS%
set CATALINA_OPTS=-Dhttps.proxyHost=my-company-proxy %CATALINA_OPTS%
set CATALINA_OPTS=-Dhttps.proxyPort=80 %CATALINA_OPTS%
set CATALINA_OPTS=-Dhttp.nonProxyHosts=localhost %CATALINA_OPTS%
set CATALINA_OPTS=-Dhttps.nonProxyHosts=localhost %CATALINA_OPTS%
(where my-company-proxy is actually my company proxy address)
When I upgraded from 7.0.2 to 7.2.1, I tried the same adjustment to the SETENV.BAT file but it did not work this time, getting the message that the Marketplace is unreachable.
I have searched for 'proxy' in other community threads and everyone of them (that I've seen) say that what I did was the correct course of action.
Any help would be greatly appreciated!