You could temporarily change Controller network to 192.168.0.0/24, adopt ER605 and change it back. This is/was known problem. I have to do the same procedure. Other way which suggests d0ugmac1 does...

Hello, I know that any other router will be faster, but OpenVPN throughput is not written in datasheet. I know my max VPN speed, problem is, that even ER605 could achieve two times faster speeds with...

Hello, I have succesfully established OpenVPN Client-to-Site VPN in Certificate+Account mode, but I have been limited in speed. With L2TP/IPSec VPN or PPTP VPN to the same site I am able to reach...

Exactly.

@dbSoft Hello, if you want to use Fast roaming (seemless roaming without connection interruption), you have to use controller. If you do not bother if connection drops for a few seconds, you do not...

Dear @Fae, thank you for your reply. Your solutions does help. I have also tried complete reload of page in Firefox with CTRL+F5 ,which has helped me.