Hello All -
Wondering if anyone has any thoughts on what might be happening here.
I have this 4G HAT that appears to be mostly working for me. I can make phone calls, send SMS, and it even connects to the Internet via this RNDIS guide that I found on the waveshare site
https://www.waveshare.com/wiki/Raspberr ... net_access
Here's the issue I am running into
Upon restart, the device will show that it has a data connection, and I can ping something like 8.8.8.8
But I cannot use DNS - so ping www.google.com does not work
The minute I run this command - DNS starts working again
sudo udhcpc -i usb0
I have tried to add this into a startup script like rc.local or even a systemd service. But neither of these seem to be working for me.
It seems very strange and I'm hoping someone out there has a tip on what might get this working 100% of the time so I dont have to do this each time.
Thanks,
Ed
Wondering if anyone has any thoughts on what might be happening here.
I have this 4G HAT that appears to be mostly working for me. I can make phone calls, send SMS, and it even connects to the Internet via this RNDIS guide that I found on the waveshare site
https://www.waveshare.com/wiki/Raspberr ... net_access
Here's the issue I am running into
Upon restart, the device will show that it has a data connection, and I can ping something like 8.8.8.8
But I cannot use DNS - so ping www.google.com does not work
The minute I run this command - DNS starts working again
sudo udhcpc -i usb0
I have tried to add this into a startup script like rc.local or even a systemd service. But neither of these seem to be working for me.
It seems very strange and I'm hoping someone out there has a tip on what might get this working 100% of the time so I dont have to do this each time.
Thanks,
Ed
Statistics: Posted by BigEdk — Mon May 19, 2025 8:34 pm