Blynk app cannot access local server

I have been successfully running Blynk local server for about 6 months now. The server is running on an old laptop computer with Linux and Xubuntu with a hard wired LAN connection to the D-Link local WiFi router. It has been running server-0.26.1 and working without problems.
A few days ago I had a power blackout and the server had to be re-started. Since then, the app on my smart phone has not been able to log in to the local server.
I thought there may have been a problem with updates at around the same time, so I have installed the latest version of the server, which is server-0.30.2-java8.jar
I also reinstalled the app on my smart phone, which is running Adroid 6.0
The entries in the blynk.log file look like this (this is a representative sample):
21:10:07.260 INFO - keith.hungerford@gmail.com hardware joined.
21:19:44.576 INFO - keith.hungerford@gmail.com hardware joined.
21:29:21.567 INFO - keith.hungerford@gmail.com hardware joined.
21:30:32.941 ERROR- Wrong income message format.
21:30:32.944 WARN - User not logged. /192.168.0.102:53590. Closing.
21:30:33.686 ERROR- Wrong income message format.
21:30:33.688 WARN - User not logged. /192.168.0.102:47420. Closing.
21:30:34.382 ERROR- Wrong income message format.
21:30:34.384 WARN - User not logged. /192.168.0.102:59514. Closing.
The lines with INFO are from one of my hardware projects which is using sleep mode and wakes up to report once every 10 minutes. These lines are evidence that the hardware is able to log in and report data successfully.
The following lines are the start of a long series of identical messages, in which the app on my smart phone is trying to establish communications with the server.
The last test I did was to log in to the Blynk cloud server, which succeeded! So it seems that it is possible for the app on my phone to correctly communicate, and suggesting that the problem is in the local server.
Please help.
Thank you.

1 Like

Have you taken into account this recent announcement?

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Thank you Gunner, this problem is solved.
As well as loading the new version of the local server (I used server-0.30.2-java8.jar) and the Blynk app on my smart phone, I updated the port forwarding rules in my WiFi/LAN router to use port 9443 and changed the port entry in the custom login on my Blynk app to 9443,
Then it worked again as before.
Thank you again. Keith