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Forum Discussion

Aspirant

Mar 06, 2016

Solved

Synology VPN PPTP server constantly dropping connection in short time (using wndr3700v3 router)

Hi, first of all, my english is poor, dont punish me. router wndr3700v3 (latest firmware) NAS synology ds214 (latest OS) synology VPN PPTP server (no encrypting, authentication MS-CHAP v2) n...

Troubleshooting

VPN synology wndr3700v3

dsdoyle
Oct 05, 2015
Ended up being a DNS setting on the WAN port of the router.

NETGEAR Employee Retired

Mar 07, 2016

jaaytech How is the VPN client connected (wired or wireless)? You may verify if the router is causing the problem by bypassing it. Another option is to lower down the MTU on the router.

jaaytech
Aspirant
Mar 08, 2016
hi, just additional informations from my troubleshooting, i have tested connection stability with another VPN (my friend provided his for test purposes) and it working perfectly, so this excluded any issue on client side.
Now back to Elaine suggestion, client side is connected on wifi and router side is connected by wire in cascade with technicolor 2700 (bridge mode) ,default values of MTU size was 1400 in case of router and 1500 for VPN server settings, i have already tried to setup to the same value (1400) and it didnt help. So iam going to try lower values, i will provide feedback in few minutes. Thank you.

Milan
- jaaytech
  Aspirant
  Mar 08, 2016
  Wow, i wuldnt believed that the MTU size can so rapidly affect stability, it was the issue whole time. Now i just will find optimal MTU size (1200 works fine, but is more fragmented). Thank you for your time. You are best !
  
  Milan
  - ElaineM
    NETGEAR Employee Retired
    Mar 08, 2016
    jaaytech You're very welcome! Glad it's working now.