patrickkent:

Supply the following if possible:

• Device problem occurs on ath79 tl-wr741nd-v4 with 64MB ram

With /etc/config/network like below:
config interface 'wan'
option ifname 'eth1.1234'
option proto 'pppoe'
option username 'user'
option password 'pass'
After run command "ifup wan", no process pppd will appear, and logread not show anything.

But with /etc/config/network like below, it will works well.
config interface 'wan'
option ifname 'eth1'
option proto 'pppoe'
option username 'user'
option password 'pass'

I don't know which commit break it exactly. Only know ar71xx 17.01 worked well. Thanks.