Just received my new 536. Appears to be working properly with one exception. When I try to update the DB in Sentinel I get the attached. I had a similar (not same) problem with the 436 that was solved by downloading a driver. In Windows Control Panel Device Manager the 536 does not have the yellow problem icon. I have been able to upload and download the FLs and DB between the radio and the computer. Only the update DB in Sentinel fails.
Rob,
Are you getting that error when trying to update the database in Sentinel? Or, when trying to update the scanner with the database from Sentinel?
Since you note that you've been able to download Favorites lists to the scanner, I suspect you mean that you're getting this trying to update Sentinel's database. Am I correct?
If it is popping up when trying to update Sentinel, then it's most likely to be a firewall issue. The other possibility is, of course, a server error on Uniden's side, but if this keeps coming up when you try again later (an hour or two later, for instance), then I'd suspect firewall.
