Perhaps this could be used as a last resort if the firewall ports are blocked

General
1

Release notes for version 30 list TCP port 993 as a fall back for port 31314. Could I suggest as a last resort DNS be used as a channel to signal wifi, DHCP is good but both TCP sessions blocked.

Say for example that both 31314 and 993 are blocked, then the IMP could DNS lookup notcp.237ffeeb1234ee.server.electricimp.com as a way of getting a diagnostics message through.

Just a suggestion. :slight_smile:

2

Interesting thought indeed (though does require us to run our own DNS servers). The problem then is what you actually do about it…

3

It could save some time on the phone to users, easier troubleshoot if the IMP can at least get a minimal message through to the logs.

The DNS server could return CNAME response letting the IMP know that at least the DNS channel worked.