Shorting Out and Rebooting
Place a pair of metal tweezers directly into the 1 and 7 holes at the bottom of the tag
This followed by connecting the tag to SeaDock where the left (pink) screen will say ($B,0,GI,1) continuously till the tag has charged enough to send out a signal
The first message that will appear should resemble something like what is pictured below
Followed by a message resembling the one pictured below.
Once that message has been sent that is the tag attempting to connect with SeaDock. This is after the tag has rebooted and connected with SeaDock
This procedure is usually performed on tags that have issues with connecting, and I hope that it helps you resolve your connection issue.