Only work around I can think of is something I used to do to fix a issue I had similar with a remote database I accessed. Get Firefox with Tabmix plus. Open a windows with two tabs, set the routers access pages as both tabs, set the focus on the 2nd tab, set a 30second reload timer on the first tab, save as a session, then save that session as a shortcut on your desktop. Page renews every 30second which renews the certificate, and ::poof:: not more timeout? No idea if it would work, but worth a try. Alot of work though for a small issue.