Hi, I am running on a FX30S LTE-M WP77 with legato 19.11.5… I can successufly create a data connection, resolve hostname using getaddrinfo. I then close the socket. I use le_data_Request and socket / close… However any subsequent attempts to resolve a hostname then fail with "Temporary failure i…

If you disconnect data connection by “cm data connnect -1”, and thr restart data channel by “cm data”, can it be resolved?

Just tries that… it did not work.

No I don’t think so… after reboot it work every time… the problem is repeatable… Device reboots connected to bearer created data connection getaddrinfo and open socket send /rec data close socket ping, nslookup etc don’t work anymore Thanks,

then how about you do radio on off? cm radio off cm radio on you might also need to capture wireshark log on rmnet interface to see what happens inside

busy setting up tcpdump so I can do just that… will try radio on off… but that would not be a solution…

you can see here for wireshark log capturing: [image] View pings sent from an external device to mangoh red Legato Application Framework @jyijyi Is there a step by step process you can provide?

I just get no reply… when “ping 8.8.8.8” [image]

even after re-estabishment of data channel? even after restart of radio by “cm radio”? How do you reproduce the issue? cm data connect ping 8.8.8.8 wait for some time ping does not work

it seems turning radio off then on resolves the issue. To recreate… I start my app which a) turns the radio on (if off) with le_mrc_SetRadioPower(LE_ON) b) wait for network registration (in the le_mrc_AddNetRegStateEventHandler) c) request data connection with le_data_Request() d) wait for conn…

Getaddrinfo failing after closing socket

Uncategorized

jyijyi February 27, 2023, 4:07pm 8

you can see here for wireshark log capturing:

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Getaddrinfo failing after closing socket

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