HAOS 13.1 on an x86_64 VM under Linux, using Virtual Machine Manager and a downloaded qcow2 image.
During the initial startup it is failing to clone from github.
Packet capture on the Linux hypervisor system of the interface for the VM shows a TCP conn to github hanging during TLS startup, with a “previous not captured” packet from github at Seq 2849, immediately after the Client Hello. I suspect that was the tail of the Server Hello; the preceding packet from github was the SYN,ACK
so a couple, probably large ones, were dropped.
I’m thinking of an MTU issue at this point. I have already nailed the “virbr0” interface that the Linux VMM sets up, to have MTU 1420; this did have the effect of dropping the MTU of the “enp3s0” interface visible via the VM console (“login”, “ip link”) to 1420 from its previous-attempt 1500. However, all the others are still 1500 - and the SYN sent to github had MSS 1460.
Is there some way of getting that lower value to replicate across all the interfaces HAOS uses internally? Or something else I am missing?