I am currently testing one Vodafone H300s router for a few hours. 
H300s: Internet Led indicator this has and one undocumented function which I did discover
 accidentally.I did leave H300s powered on, along my computer desktop PC this running a files backup task,  120 minutes later the PC fall in to sleep mode.
Then I did return at my office few hours later and I did found my PC in to sleep mode and the internet green LED at the router this constantly flashing.
Then I did login at the router web-interface, and navigate my self at the logs.  
And I did discover this: 
 2023-03-03  19:22:46  Providing DHCP information to a requesting station has failed (H003)  LAN _________________________________________________________________________________________________
Therefore and in conclusion, if and when an 
critical event this is recorded at H300s 
Event log, there is a chance 
the relative Led indicator this to start flashing for ever.
In simple English, Vodafone H300s this is also capable to deliver visual alerts of critical level logged events. 
Fix: As soon I when in to the Event log and read it,  the Internet activity led this stopped flashing and started working as expected.  
