My GSA SER stopped posting backlinks


My GSA SER stopped posting backlinks

My GSA SER stopped posting backlinks.
There are no blocked engines or search engines (IP).
It is simply too slow or not at all.
Could it be the lack of private proxies? Or can I continue using the GSA’s own proxies?
My connection is fiber optic and 70Mb of Down for 20Mb of Up.
The GSA Ser seems to be choking on posting new backlinks today.
There are no serious problems with the GSA Logs.
What should I do?