Since I updated my AC to 4.73 version, I have noted that log-in process from any other PC ( whether wired or wireless) takes much longer 90-120 secs. I can still log-in on my main PC where AC is installed in 5 secs or so.

I have removed firewall and Antivirus softwares. I have also changed my DLink (DIR-655) router to Linksys router with n o difference.
Other than that I don't have any major problem. But it is too frustrating to wait for that long to log-in.

Does it have any thing to do with SQL server or any other setting or any suggestion about what else can we do ?