I am experiencing the same issues. I have a L2TP VPN server at work and one at home. I am able to connect to either of them as long as I am connected to a WiFi network. As soon as I disconnect from WiFi and remain connected to Rogers LTE only, I get this message:
"The L2TP-VPN server did not respond. Try reconnecting. If the problem continues, verify your settings and contact your Administrator."
I have tested it with an iPhone 7 Plus and an iPad Air 2, both running IOS 11.4.
Again, If I am connected to a WiFi network, I can connect to both VPN servers without a problem.
Rogers must be blocking/filtering one of these ports/protocols:
IP Protocol Type=UDP, UDP Port Number=500 <- Used by IKEv1 (IPSec control path)
IP Protocol Type=UDP, UDP Port Number=4500 <- Used by IKEv1 (IPSec control path)
IP Protocol Type=UDP, UDP Port Number=1701 <- Used by L2TP control/data path
IP Protocol Type=50 <- Used by data path (ESP)
I have similar issues connecting to a SIP server as well. As soon as I connect to a VPN server, the connection to the SIP server is made.
IP Protocol Type=UDP, UDP Port Number=5060 <- Used by SIP Server
PS: I have also tried to connect to various PIA (Private Internet Access) servers with the same results (failures). As soon as I switch from IPSEC to OpenVPN protocol, I have no problem.
This is exactly the same issue I am having.
I took my Rogers SIM out and put in an android that I tested earlier over Bell LTE and it worked instantly.
Soon as I put the rogers sim in and it failed, the same Android could no longer establish the VPN connection.
Something HAS changed within the last 24 hours. I called tech support, she was clueless.. Suggested I try on 3G only, did without success.
Once again, experiencing with 3 DIFFERENT Rogers SIM CARDS/NUMBERS to 3 DIFFERENT VPN Routers, with same issue. All 3 routers are on totally different carriers. Bell / START.CA and EASTLINK.
The only commonality is Rogers LTE.
I can see the connection ACK in the router so the tunnel starts to get connected and just drops.
It seems traffic is coming in one way to the router but cannot get from the VPN router back to Rogers.
VPN that works on BELL LTE is not working on ROGERS LTE. Something is wrong.
I have ruled out, local ISPs, client hardware and the remote server hardware.
All that is left is ROGERS.
The level 1 techs are refusing to open tickets for this issue at tech support.
The first one told me "if you can browse websites then it *should* work"
The 2nd I just spoke to reset my phone connection and disconnected me!
Can we please get some help from Rogers staff here to escalate this to the right department?
Same issue here and level 1 is clueless about it
small situation here
1 Iphone 6S on Videotron (Works with L2TP VPN on LTE)
1 Iphone 7 on Rogers Doesn't work with L2TP VPN on LTE
1 Android S7 ( i think) on Rogers Works wiht L2TP VPN LTE
The Android and the Iphone 7 are on the same Rogers account.
Situation I did
1) I inserted the Iphone 7 Sim (rogers) in my Iphone 6S (videotron) and VPN LTE doesn't work (it worked with Videotron Sim)
2) I inserted the Iphone 7 SIM in the android (and VPN still works) I inserted the android Sim (that works) in the Iphone 7 still doesn't work
Been with Rogers for 1h30 and they are clueless about this, all they saying is 'we don't support VPN' This is bad because alot of people need to access our Cameras, and no way i'm opening the Cameras on the WAN for Rogers failure
Call and open a ticket.
Level 1 is only going to waste your time, it appears that the cause of this may be that Rogers switched to IPV6 ONLY without any IPV4 support.
I tested with Android S8 and was not able to get connected using a ROGERS SIM.
Also tested with a iPhone 6s and 2 iPhone Xs all with different SIMS no luck.
When tested with a Bell SIM everything is fine.
I'm the one who started this thread in March 2018. I just wanted to say the issue is still present with VPN connections (IPSEC / IKEv2) through Rogers LTE. It connects, but not all sites are accessible when connected through the VPN. I have confirmed with other cellular providers, Wi-Fi, etc. The only variable is Rogers LTE so I can only blame their service.
Moreover, I have been having issues with the Rogers LTE Internet when no VPNs are involved.
For example, browsing a website, you click a link and and it just sits there trying to load without success. Hit Reload and it works right away.
It seems about 30-40% of connections don't success and then reloading just works.
Same symptoms within mobile apps.
It makes for a very frustrating experience trying to use the Internet.
I have confirmed with a coworker who experiences that same issues and he thought it was his phone that was the problem.
Both of us are using iPhones in Ottawa.
Please look into this before we all switch providers...
Have you tried changing your SIM card? It could be an antenna in your area?
Our issue is that we are physically blocked by connecting VPN at all -- as of yesterday.
We appreciate everyone coming together and providing their feedback! Since VPN issues are something we don't generally suppport, I can't guarantee we'll be able to resolve this, but that definitely doesn't mean we can't look into it!