Hi!
We´ve deployed AP105 to our sites connected with fiber and 4G redundancy for a while and it has worked great, both on fiber and through 4G. We´ve configured the SAP MTU of the AP system profile to 1300 to allow it to pass through the tunnel the provider does on their cellular interface (they have an MTU of 1340)
BUT, today we deployed an AP-103 on a site which is currently only running on 4G as the fiber is delayed and it´s not coming up. I´ve verified that the AP is getting an IP address, I can see the traffic from it hit the central controller (so it´s obviously discovering the master through the DNS). I see a syslog packet on port 514, then I see IPSEC on 4500. I´ve verified that the SAs for phase1 and phase2 is there but then nothing more happens. No PAPI, no GRE and then it loops.
We sent an AP-105 to the site, just to make sure that it was a provider issue but behold, the AP-105 comes up as normal! Same configuration as the AP-103.
We then sent another AP-103, figured it must be something wrong with that particular one, but also that one has the same behaviour as the first AP-103.
The only fitering point in play is the central firewall and we´ve checked that nothing gets dropped there. We´re running CPSEC with auto-cert provisioning and we´re on ArubaOS 6.4.2.12. We have not yet been able to console the AP, we will do that when we get the chance.
Does anyone have any idea what could be causing this?
Cheers and have a great weekend,