RDP problems over Netscreen 5GT
Hello,
In one of our offices we have two completely separate networks (due to business reasons this has to be the case), Network A & Network B. Between the two networks I have placed a Netscreen 5GT to allow some traffic to pass between the two. Some users from Network A need to RDP to a server in Network B.
The RDP session kicks off fine and allows the user to connect to the sever, however, after only a few seconds the session disconnects. Some of these users are on XP, others are on thin client Winterms.
I can run a constant ping from A to B without any drops. Going in the opposite direction, ping is also constant and Citrix works flawlessly. Unfortunately there are no Citrix farms on Network B so it has to be RDP into the terminal sever.
Users on Network B can RDP into the server without any problems. So it appears to me that the problem lies in the Netscreen, but I open to all suggestions.
I did wonder if it could be a problem with MTU size. I tried reducing it to 1300 on the Netscreen but it made no difference. I have seen in some places that the MTU needs to be set on the client machine, but as some of the users are on Winterm thin clients, I don't think this can be configured. But I fully admit I know very little about MTU so I am open to any suggestions.
Kind regards
In one of our offices we have two completely separate networks (due to business reasons this has to be the case), Network A & Network B. Between the two networks I have placed a Netscreen 5GT to allow some traffic to pass between the two. Some users from Network A need to RDP to a server in Network B.
The RDP session kicks off fine and allows the user to connect to the sever, however, after only a few seconds the session disconnects. Some of these users are on XP, others are on thin client Winterms.
I can run a constant ping from A to B without any drops. Going in the opposite direction, ping is also constant and Citrix works flawlessly. Unfortunately there are no Citrix farms on Network B so it has to be RDP into the terminal sever.
Users on Network B can RDP into the server without any problems. So it appears to me that the problem lies in the Netscreen, but I open to all suggestions.
I did wonder if it could be a problem with MTU size. I tried reducing it to 1300 on the Netscreen but it made no difference. I have seen in some places that the MTU needs to be set on the client machine, but as some of the users are on Winterm thin clients, I don't think this can be configured. But I fully admit I know very little about MTU so I am open to any suggestions.
Kind regards
ASKER
MrMintanent - thank you for your response.
The policy on the netscreen is already allowing 3389 though, so will this make a difference to the problems I'm getting with the session disconnecting?
Thanks
The policy on the netscreen is already allowing 3389 though, so will this make a difference to the problems I'm getting with the session disconnecting?
Thanks
Have you tried to lower the connection speed to 16 bit color, etc?
ASKER
No, I haven't actually - I'll try that this afternoon.
Thanks
Thanks
ASKER
Hi, back after the bank holiday weekend.
Even with 256 colours and reduced display resolution I get the same issues.
Thanks
Even with 256 colours and reduced display resolution I get the same issues.
Thanks
ASKER
Raising the points to 500 in the hope that someone can help me. Thanks!
ASKER CERTIFIED SOLUTION
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ASKER
Sfrancy, thank you very much for the response.
I've not had chance to try this today but will do on Monday.
Thanks
I've not had chance to try this today but will do on Monday.
Thanks
Did "unset flow tcp-syn-check" resolve the issue?
Then setup policies to only allow port 3389 through.