Hi everyone,
 
	I'm experiencing an issue with my Netduma R3 setup and would appreciate any support or advice.
 
	Setup details:
 
	
		
			ISP: Vodafone (via Deutsche Glasfaser infrastructure)
		 
	
	
		
			Connection type: FTTH
		 
	
	
		
			Authentication: PPPoE
		 
	
	
		
			VLAN ID: 7 - Set correctly (as required by Deutsche Glasfaser/Vodafone)
		 
	
	
		
			Device: Netduma R3 (latest Early firmware)
		 
	
	
		
			Alternative device: Fritz!Box 7490
		 
	
	When I connect using the Fritz!Box 7490, I get the full contracted speed of 1 Gbit/s down and 500 Mbit/s up. However, when using the Netduma R3 with the exact same PPPoE credentials and VLAN configuration, I only reach about 770 Mbit/s download, although the upload remains close to expected.
 
	This suggests the issue lies with the Netduma R3 itself, possibly in how it handles PPPoE or VLAN tagging under high throughput conditions.
 
	What I’ve tried so far:
 
	
		
			Verified PPPoE credentials and VLAN settings
		 
	
	
		
			Ensured R3 is directly connected to the ONT/modem (no double NAT)
		 
	
	
		
			Tested with and without QoS/Geo-Filter enabled
		 
	
	
		
			Firmware is up to date
		 
	
	
		
			No devices heavily using bandwidth during the test
		 
	
	
		
			Speed tests conducted via wired connection (Cat 6 cable) 
			 
			 
		 
		
			Any input would be greatly appreciated. I really like the features of the Netduma R3 and would prefer to keep using it—if I can get it to deliver the full bandwidth.
		 
		
			Thanks in advance!