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[tristian888]

Dear experts,

I am in need of help badly. Ever since i changed to Dlink 878 it has not been a smooth ride. My biggest issue now is it keeps disconnecting my corporate VPN very frequently  and Windows Event Viewer says Error 789 RASClient. Some details as below and hoping someone can help me out here.
I never had this when I was using TPLINK router in the past.

using wireless and connecting to office VPN
Model D-Link DIR 878
ISP Provider - TM Unifi Malaysia
Firmware: v1.2

Kind Regards,
MArk.

[FurryNutz]

Link>Welcome!

• What Hardware version is your router? Look at sticker under the router case.
• Link>What Firmware version is currently loaded? Found on the routers web page under status.
• What region are you located?
• Are you wired or wireless connected to the router?
• Has a Factory Reset been performed?
• Was a Factory Reset performed before and after any firmware updates then set up from scratch?

  Link> >FW Update Process

• Was the router working before any firmware updates?

Internet Service Provider and Modem Configurations

• What ISP Service do you have? Cable or DSL?
• What ISP Modem Mfr. and model # do you have?

[tristian888]

Hi FurryNutz,

1) Hardware version :A1
2) Firmware v1.2
3) APAC Region - Malaysia
4) Connected wireless
5) No did not perform factory reset after upgrade
6) No did not perform
7) I had the same issue before firmware upgrade
ISP Service is TM Unifi, DSL fiber
9) Modem brand ONU-HUAWEI-HG8240w

Kind Regards,
Mark.

[FurryNutz]

Seems that your ONT may have a built in router already?

• If the ISP modem has a built in router, it's best to bridge the modem. Having 2 routers on the same line can cause connection problems: Link>Double NAT and How NAT Works. Call the ISP and ask to see if the ISP modem can be bridged. To tell if the modem is bridged or not, look at the routers web page, Status/Device Info/Wan Section, if there is a 192.168.0.# address in the WAN IP address field, then the modem is not bridged. If the modem can't be bridged then see if the modem has a DMZ option and input the IP address the router gets from the modem and put that into the modems DMZ. Disable ALL WiFi radios on the modem. Also check the routers DHCP IP address maybe conflicting with the ISP modems IP address of 192.168.0.1. Check to see if this is the same on the ISP modem, and if modem can't be bridged, change the DIR router to 192.168.1.1 or .0.254.
  Example of a D-Link router configured for PPPoE with ISP Modem bridged: PPPoE Configuration on a Router