You suggested that my problem might be due to browser extensions. I have disabled my chrome extensions one by one until there are no plugins in operation. Still, when I go to joomla administration and try to do updates from there, I am still not recognized as having logged in. I even went to another browser window, logged into Joomlapolis and then tried to access the site from CB in my Joomla site. I even tried it in Firefox and MS browser.
I don't know if I'm doing it wrong. It seems that the only choice I have is to go to Joomlapolis and download everything and access the updates from my harddrive. It used to work to simply click on the CB links in the Joomla control panel. That's less convenient.
Once, after my last contact on this thread, it worked. I have no idea what, if anything, I did different. Any suggestions?
Doug