W211 Comand location stuck in Portsmouth? Antenna?

[emailthebrowns@]

Hi i have comand fitted in my 2002 E270 CDI (W211) which seems to be stuck in Portsmouth? I was working in the area about 2 weeks ago, however after travelling back up to Cheshire my comand unit still has me in Portsmouth.
The unit was retrofitted by me and coded by Richard at Comand On line and has functioned without problem for the last 2 years.
I have changed the disc to a previous version i have but still shows me in Portsmouth. It attempts to calculate a journey and keeps showing new route being calculated? but never gets far!
Any ideas on what the problem could be?

Thanks in advance.

 

[npuk]

You can try reseting it completely by removing the fuse for Comand in the fusebox. If it is still the same most likely gps unit has failed. Check if it is seeing any satellites.

 

[emailthebrowns@]

Thanks npuk
Couldn't find the fuse so just removed all the cables from the back of the disc unit in the boot , put all back together again and with in minutes back in Cheshire.