Ptcl EVO not working in Ubuntu 14.04
Solution 1:
I had a similar problem with PTCL EVO 3g on Ubuntu 15.04. This is how I solved it.
- Right-click on the network icon on the tray.
- Go to Edit Connections.
- Select PTCL EVO Connection in the list.
- Click on Edit.
- Click on tab PPP settings.
- Deselect Allow BSD data compression, Allow deflate data compression, Use TCP Header Compression.
- Restart ubuntu just to be on the safe side.
- Activate your broadband connection.
I stumbled upon the solution by observing a number of malformed packet headers in my Wireshark dump. I hope this helps.