@268BBA 

Do you use IPS/IDS?

  @MR.S no, is not turned on

MR.S wrote

  @268BBA 

Do you use IPS/IDS?

 

  @268BBA 

hmmm, that was strange. I have exactly the same solution, ER8411 and SG2428P switch but have never noticed that WAN drops. Are you using L2TP VPN then? I have noticed that there can be drops when L2TP connects or disconnects.

MR.S wrote

  @268BBA 

 

hmmm, that was strange. I have exactly the same solution, ER8411 and SG2428P switch but have never noticed that WAN drops. Are you using L2TP VPN then? I have noticed that there can be drops when L2TP connects or disconnects.

 

 

I do had configured but it was not active at all. (now I've deleted it)

After some logs checkup: 

06:35:55: WAN/LAN4: IKE negotiation began in responder mode

06:50:12: WAN/LAN4: LCP sending ECHO-REQUEST timeout

06:50:19: WAN/LAN4: LCP sending TERMINAL-REQUEST timeout

06:50:36: PPPoE discovery phase negotiation succeeded

06:50:39: *PPPoE user* authenticated

06:50:39: LCP negotiation succeeded.

  @MR.S 

  @268BBA 

yeah hard to say. I don't have any more tips. You can see if what you did helped now.

you can download pingplotter to more easily monitor your network over time. it is a free version, set up monitoring of one ip on lan and one on wan e.g. 1.1.1.1

  @MR.S Thank you !

Hi @268BBA 

Thanks for posting in our business forum.

Looks like a problem with your ISP. At least the request timeout stands for the router detects the peer end is not responding correctly.

  @Clive_A 

With ER605 I did not have any issues, this issue starts once ER8411 was installed.

Other things that I've changed in configuration on ER8411 and not have it on ER605 are:

1. I've set DST (site and controller); it could have something with that ? 

2. Create an L2TP client to site VPN for remote access.

I've disable both of them to check if drops still happend.

Clive_A wrote

Hi @268BBA 

Thanks for posting in our business forum.

Looks like a problem with your ISP. At least the request timeout stands for the router detects the peer end is not responding correctly.

Hi @268BBA 

Thanks for posting in our business forum.

268BBA wrote

  @Clive_A 

With ER605 I did not have any issues, this issue starts once ER8411 was installed.

 

Other things that I've changed in configuration on ER8411 and not have it on ER605 are:

1. I've set DST (site and controller); it could have something with that ? 

2. Create an L2TP client to site VPN for remote access.

 

I've disable both of them to check if drops still happend.

Clive_A wrote

Hi @268BBA 

Thanks for posting in our business forum.

Looks like a problem with your ISP. At least the request timeout stands for the router detects the peer end is not responding correctly.

 

If your country is on DST, the servers should be on DST as well. Though time would make a difference in the connection, they would fail if the client and server time is out of sync.

You recalled that you wrote that you disabled L2TP? WAN should not be affected by the VPN. VPN is based on the WAN. If the VPN is disconnected, that would not disconnect the WAN. Vice versa, WAN would affect the VPN.

  @Clive_A 

It went down again :( 

I've requested intervention from ISP to check, if it still not resolved, I will try to factory reset it and configure all network again.

About that how should I do it ? If I factory reset the gateway when I'm adpoting it into controller it would apply old config (saved on controller)? should I reset controller as well ? 

Thank you for support !