@Libik 

 

Yes you will probably have the same problem with the ER7206, but they are cheap so it does not cost much to try. they are a little faster anyway.

 

  @Libik 

 

I did some more testing and it seems like IPSec is ok now but there are still issues with L2TP,

  @Libik 

Answer from the TP-Link:

Very sorry, after confirming with R&D, this beta fixes the IPsec site-to-site VPN issue. L2TP over IPsec is not fixed. R&D is in the process of making another version of beta, please be patient.

  @Libik 

 

Ok, Yes that what i also figure out after more testing. I have reported to Tp-Link but now I know he answer. :-)

 

But something happend now and that good.

 

 

  @shberge 

I have received new beta FW for ER605, but it just not solve the issue:-(

  @Libik 

 

I do a test with the new software copy 8-10Gb with no issue, but it painfully slow :-)

 

I have also replaced my ER7206 with ER605 v2 and now I have about 250Mbps in a IPsec VPN with exact same config in same site as ER7206, so don't by ER7206 that in my site do 30-50 Mbps with IPsec VPN. I also do L2TP test between two ER605v2 and the speed was about 40-65 Mbps.

 

witch type of L2TP server do you have in the remote end?

 

 

 

I am using L2TP encrypted with IPSec and VPN Server is made by Ubiquity Dream Machine Pro. I have 100/25 MBit Internet connection (maybe 250/25 in near future) so maybe I will upgrade to ER605 V2 instead of ER7206, but at first it has to work without this issue.

  @Libik 

 

Ok, I use unifi USG 3p for L2TP with policy route on the tp-link router. I also have a UDM Pro that I play with from time to time but have not tested L2TP on this one. if I have time I have to pick it up one day. but now there are so many tp-link problems here that I have not had time for anything else. the new thing now is that the ER605v2 restarts or hangs up completely when there is a lot of traffic in the IPsec VPN tunnel. it's so bad that i had to connect a Cisco firewall here today to run IPsec so I can get backup, this has failed ever since I got ER605v2.

So there is always something with the tp-link routers.

Otherwise it looks very good, good speed in VPN when it works, so I really hope that tp-link gets its routers in order.

 

 

 

 

 

I have tried ER605 v2 it disconnects and reconnects each hour as well:-(

New firmware 1.2.1 for ER605 breaks down PPTP VPN. With this version is PPTP client-to-site VPN very unstable.

 

I have found something that should be related to my problem on UBNT forum (search - Site to site V.P.N. timeout at exactly 3600 seconds). Seems like UBNT has even worse VPN. I think that problem could be, that ER605 does not handle keep alive at all or differently from Windows VPN Client and UBNT Dream Machine Pro after 1 hour renew IKEv2 key.