VPN failure on Telkom LTE, works fine on CELL C

Eniigma

Expert Member
Joined
Aug 18, 2006
Messages
1,962
I have 7 locations running more or less the same setup, with only the windows version being different, all 7 where using a Cell C LTE connection and all was good.

Last week I swapped out a sim on a LTE router for a Telkom one.

Tested that internet and email are fine and left it. I set the machine to do an update of the windows version to 1903 or 1909 and let run over night. On Monday I came in messages that the VPN wasn't working.
Checked the pc and saw the update had failed and put the VPN issues down to update screwing up the network.

Today a second sim was swapped for a Telkom one and immediately the VPN issuses began. This machine is a Win 7. Same issue as the Win 10 one I did last week.

Only things I can think is either it's a DNS issue as the VPN is connecting to server.dyndns.org or some protocol or authentication method is blocked on Telkom.

Anyone had any similar issues?


It is not a firewall or Antirvirus software issue. All of them run the exact same AV and firewall rules. Disabling FW has no effect either.
 

Rickster

EVGA Fanatic
Joined
Jul 31, 2012
Messages
17,013
I have 7 locations running more or less the same setup, with only the windows version being different, all 7 where using a Cell C LTE connection and all was good.

Last week I swapped out a sim on a LTE router for a Telkom one.

Tested that internet and email are fine and left it. I set the machine to do an update of the windows version to 1903 or 1909 and let run over night. On Monday I came in messages that the VPN wasn't working.
Checked the pc and saw the update had failed and put the VPN issues down to update screwing up the network.

Today a second sim was swapped for a Telkom one and immediately the VPN issuses began. This machine is a Win 7. Same issue as the Win 10 one I did last week.

Only things I can think is either it's a DNS issue as the VPN is connecting to server.dyndns.org or some protocol or authentication method is blocked on Telkom.

Anyone had any similar issues?


It is not a firewall or Antirvirus software issue. All of them run the exact same AV and firewall rules. Disabling FW has no effect either.
Are you using the unrestricted APN?
 
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