I agree, but we graph the tracked/visible satellites on all APs, and these ones would have, say 10 tracked, and then 0 for hours, then 10.  It was hardly ever a gradual change.  We were convinced it was firmware, or a bad GPS receiver, or puck, etc. and went down every road we could think of, because it seemed like it had to be one of those.  Out of the 4-5 sites we had with this behavior, every one was permanently solved by pointing the pucks up, and I think all of them were in close proximity to a cell tower.

-Kristian

On 01/26/2018 12:36 PM, Josh Luthman wrote:
No satellites doesn't sound like poor signal to me.

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

On Jan 26, 2018 3:28 PM, "Kristian Hoffmann" <[email protected] <mailto:[email protected]>> wrote:

    We fought with losing GPS sync on ePMP APs at a couple of sites. 
    We had been told to point the pucks south to get the best GPS
    signal. There were several wild goose chases, as it seemed
    upgrading/downgrading firmware fixed it, but only sometimes.  In
    the end, the solution at each of these sites was to point the GPS
    puck straight up.  Our best guess was that there was something
    overloading the GPS receiver in the direction we had them
    pointed.  So pointing them up, while not giving them the best
    signal, minimized terrestrial interference.  At least that's our
    theory.

    -Kristian


    On 01/26/2018 07:39 AM, RickG wrote:
    Well, I did check the forums and found I'm not the only one. I'm
    going to try downgrading. Was hoping to find someone here who has
    gone through it so I dont waste time if it needs to be RMA'd :)

    On Fri, Jan 26, 2018 at 10:27 AM, Ray Savich via Cambium-users
    <[email protected] <mailto:[email protected]>> wrote:

        Have you contacted our support folks or the Cambium Community?

        [email protected] <mailto:[email protected]>

        http://community.cambiumnetworks.com/
        <http://community.cambiumnetworks.com/>

        Join the Conversation

        Cambium Networks Community Forum
        <http://community.cambiumnetworks.com/>

        *From:*[email protected]
        <mailto:[email protected]>
        [mailto:[email protected]
        <mailto:[email protected]>] *On Behalf Of *RickG
        *Sent:* Friday, January 26, 2018 9:20 AM
        *To:* Cambium Networks User Group <[email protected]
        <mailto:[email protected]>>
        *Subject:* [Cambium-users] ePMP 2000 GPS not working after
        firmware upgrade

        It worked before, upgraded from 3.5.1, no more :(


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-- -RickG


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