Hi,

I have the same problem that is discussed in this thread:
http://social.technet.microsoft.com/Forums/en-US/ForefrontedgeIA/thread/3871606b-6547-48dd-a79d-053bba72067b

Yuri Diogenes [MSFT] last answer was:"Unfortunetly it is going to take a bit more due the tests that Product Team is currently doing on this. Although we might have a workaround, we are working towards the root cause to fix the issue."

Friday, October 15, 2010 2:12 AM

Is there a fix for this problem?

Hi Anders,

 

Thank you for the post.

 

As far as I know, The private hotfix for this issue will be included in the next rollup hotfix package. And the rollup hotfix will be published soon.

 

Regards,

I know this is an old post. But I encounter this issue with a fresh new deployment which with Service Pack 2 and all updates.

I have tried everything and everything to solve this issue. After investigation in our case the problem appears to be caused bij NLB. Without NLB there is no issue at all.

Any suggestion?

Hi,

I'm facing the same issue. I have Service Pack 2 with roll-up update 3. The download speed is constantly limited to 5 Mbps and the upload speed is limited to 1 Mbps. If I use an alternative gateway (Linux), I constantly get 20 Mbps download and 20 Mbps upload.

I have turned off Malware Inspection and applied all suggested registry solution plus the script to increase TCP buffer but to no success.

The TMG server (Windows 2008 R2) is installed as a Hyper-V 2012 guest. The alternative gateway (CentOS) is also installed as a Hyper-V 2012 guest. Both are hosted on the same Hyper-V 2012 host.

In may case it appeared to be caused by NLB that was not working properly on the switch. I was using a Small Medium Business switch at that time. Apparently that didn't work out well when the devices where not in the same subnet. If a device came through a router (other VLAN) than the switch didn't work properly with NLB. Once we replaced the switch to a Cisco Catalyst everthing worked out properly.

I'm using TMG Standard. Is NLB enabled? Though it is installed as the prerequisite component, I never set up the network using NLB.

Thanks.

EDIT:

Due to unknown reason, maybe multiple restart or the configuration applied settled down, the download speed can now reach the max but the upload speed is still limited to 5-7 Mbps. The actual upload speed should be 20 Mbps.

Anyone has any more suggestion on workaround/solution?

Thanks.