Although unsupported by BT, for the advanced users out there who are using this router and firmware version, there is a workaround for this which works. All you need to do is put the router in bridged mode and set up a PPPoE connection on the Mac.
Disclaimer: Please do not attempt this if you do not know what you are doing. You will need to factory reset the router when finished so please ensure you have a note of all settings before proceeding. Also it's sensible to make sure the Mac's software firewall is on before doing this.
1. Set up an ethernet connection between the Mac and router. Test and make sure it works!
2. In the Mac network settings, create a new PPPoE connection. Enter your BT Broadband network login details
3. Log into the router interface and go to Settings > Broadband > Link configuration
4. Set ATM-Encapsulation to Bridged LLC
5. Untick the ATM PVC search box
6. Set Connection type to Direct IP
7. Scroll down and click save
8. Untick the enable routing box
9. Click the save button again
10. Go back to the Mac network settings and click connect on the PPPoE connection.
You should now have a connection which will allow you to bypass the file size limitation of the router. When you are finished, you will need to factory reset the router and reconfigure it as before. You can also delete the PPPoE connection.
Hope this helps
