G2 auto channel feature

We installed two G2 for trial and found both set themselves at channel 4 while at one that is where the neigbours have their TP-link showing with the same stron signal at channel 3 (and 6-11 are basically free).
The second unit also set itself to channel 4 where both channel 1 and 6 are heavy signals from other AP’s and channel 7-11 was much cleaner.
After 24 hours of connections the units still didn’t change channel. One we set manually to 11 and noticed improvement on the thoughput.

Checked the firmware section but couldn’t find new versions available?

This was the main reason for us to go for G2 since it would fight the close urbanized environment interferences…