My raymarine e120 at the wheel ask to be the master but my e80 in the cockpit is the master

You can download manuals for Raymarine E120 GPS free of charge here (click on 'Manuals & Docs' tab at that page).

Murray,

Has the DSM and the E120 software been upgraded to the latest software: 4.12 for the DSM and 5.52 for the E120?

Try this first. You can download the software off Raymarine.com and burn each to a separate compact flash card.

I have seen many problems like you are experiencing solved with this simple change.

If this doesn't solve the problem, the DSM will have to go back to Raymarine for repair.

I would send it off the raymarine for repair. It could be something in the voltage regulator or the cfls.

1. All your E Series MUST HAVE the same Software 5.23
2 You must set the Divice where the GPS Signal comes in as MASTER
all the other Repeater
3. Your GPS antena shoud be mounted outside

Do you have fix on the GPS?
Have you selected "find boat" and not "cursor" (bottom left button under the screen)? If you'r still stuck try a master reset (factory reset) by going into the menu and select system setup - factory reset.

Call Raymarine Tech Support or your installing dealer. The G series equipment is the cream of the Raymarine crop and troubleshooting it is not common knowledge even for dealers. Get your info right from the horse's mouth.

we have them in stock good used 847-746-0100 www.technicalmarine.com

The software shoud be 5.23 for the E 80
If you have two E series maybe a E 80 and a E120 both MUST HAVE the same SOFTWARE
If not you can have problems like this.

I have found that many of the issues you are experiencing are a result of operator error (no offense). For the system you have described, you will definitely have a network switch which interfaces everything. Is it possible that the network switch is powered from a source that you dont always turn on? In other words, if the system has multiple breakers and the network sw is tied to one of them, using only one display for example may leave the switch without power and give the error messages you described. Bottom line......BE SURE that the entire system is powered on. Another possible cause is master vs slave. One of the two displays is the master. If you power the system up in the wrong order or without the network switch in the loop, the slave unit will automatically ask you to set it as the master. NEVER do this. Changing the master will result in data loss as you described. Finally, if all of this checks out, verify the software in your displays (the version will appear in the bottom right during start up). Your software should be at least V4.29 but there is a newer version available so if you need to upgrade make sure you get the most recent. Good luck

The master/repeater selection is for the purpose of determining which display is in control of the waypoint and route database.

Turn on both units and let them boot up. Do not answer the master/repeater question until both are on. Then press "Set as master" on the preferred one.

The units remember individually if they were set as a master or repeater the last time they were on. If they are powering up to find themselves in a different configuration than they were previously in, that will prompt the whole master/repeater thing to happen.