I am 7 days into a 2-year NBN50 plan (HFC) with Optus.
Generally happy despite a speed drop from Telstra non-NBN cable but I have basically no connection when I hook up to my work's VPN. Upload is 0.01MBps, so can't event create an empty folder on the work network drives.
I switch my cable back to the Telstra router and everything works fine on the VPN with good speed.
I thought it might have been the (new model) Sagemcom router, so connected straight to the NBN ethernet cable and got similar results, so the router doesn't seem to be the issue.
It looks like something on the Optus line / NBN is blocking my VPN traffic. Any tips on how to troubleshoot this? I have logged with Optus who said it was an NBN fault and then NBN said it wasn't their fault without visiting. So 1 week in I am looking to pull the plug if I can't get this resolved.
Speedtest results below:
|Optus NBN via sagemcom router||No VPN||30||45.63||18.73||https://www.speedtest.net/result/8699831304|
|Optus NBN via sagemcom router||VPN enabled||55||9.87||0.11||https://www.speedtest.net/result/8699826875|
|Optus NBN direct to NBN box||No VPN||29||45.08||18.19||https://www.speedtest.net/result/8699376056|
|Optus NBN direct to NBN box||VPN enabled||40||4.45||0.1||https://www.speedtest.net/result/8699372529|
|Telstra Cable via Netgear router||No VPN||26||67.8||5.18||https://www.speedtest.net/result/8699852280|
|Telstra Cable via Netgear router||VPN enabled||24||37.98||4.88||https://www.speedtest.net/result/8699944274|
Appreciate any advice!
It's not uncommon for a VPN to degrade speeds to a certain degree, but not to the extent that your speed tests are showing.
I can't speak for the specific staff VPN client you're using at home, but in general- speeds shouldn't be throttled for customers using a VPN. I often work from home and I don't experience any noticeable issues when connected to my VPN at home on the Optus FTTP NBN Network.
If we raise a ticket with NBN, they'll perform a remote diagnostic from their end. If they're able to see two-way data flow and the speeds are in line with what we'd expect, they'll close your ticket and it's to us to troubleshoot the issue.
They'll only send out a technician if the results of their tests indicate that there's an issue on the NBN network. Do you have the Optus fault reference number? I can check if there's been progress on our side.
Yes I have tried that already. Speed test results don't really change whether I am going via the sagemcom router or directly to the nbn box via Ethernet cable.
Had Optus technician visit today. Saw the same slow speeds when on the VPN. Saw the expected speeds when off the VPN and also when connected to the VPN either via Telstra Cable or 4G via phone hotspot.
Spoke to supervisors and other techs and said there was nothing they could do.
So looks like I'll be starting the process of backing out of my Optus 2 year plan after 10 days and go back to Telstra Cable for as long as it is active.
Surely there are others out there using Optus NBN via HFC and connecting to VPNs? I work for a large Australian company (10,000+ staff) and we use Cisco VPN client.
Did you ever have any success with this issue? I'm seeing exactly the same thing now that I'm working from home. Using the Cisco VPN client through Optus NBN with a Sagecomm modem. My speed degradation is almodt identical to the numbers you posted.
Really hoping there's some solution to this as it's making my remote working a nightmare at the moment.
im also having trouble with optus nbn when connecting to my work via VPN
download speeds are fine but uploads i get about 0.01MB when i do a speedtest. sometimes it doesnt even register
I just tried using my phoen which is also with optus and i get 2 to 3 MB/s. Its 9pm here now so its peak time.
Im about to swap the 5366tn with my deco m5 to see if that makes a difference but from reading this thread it doesnt seem it will.
Update - not really having success, just now using the work phone as a hotspot when I need to use VPN. I made an interesting finding the other day - if I connect to VPN via phone hotspot, and then switch to Optus NBN once I have made the VPN connection (VPN reconnects after the switch) I get reasonable VPN speeds. That suggest to me it is something in the initialisation of the connection - maybe assignment of IP address? maybe something to do with the DNS?
I never got any resolution from NBN or Optus. Optus ended up saying they don't support VPN. i could have pushed it harder, and perhaps got out of my 2 year contact based on this, but fortunate enough to have work not minding if I use their provided Telstra 4G phone connection when i work from home and the speed I get this was is not quite as fast as my usual NBN50, but pretty close.
It would be good to get to the bottom of this though.