Slow Microsoft CRM Website Performance Over ISP

We are using hosted Microsoft Dynamics CRM.  Our main internet connection is a 50 MB fiber connection with 24 ms of latency to the host.  The fiber is <10% loaded.  The Microsoft CRM takes 8 minutes to load the main page.

Our secondary ISP is a 6 MB DSL connection with 56 ms of latency to host.  The DSL is <5% loaded.  Microsoft CRM takes 15 seconds to load.

The fiber goes out a Cisco ASA.  The DSL uses a Sonicwall.

The same issue is exhibited on all computers.

No other websites have this issue.  No proxies, filters or pop-up blockers.
LVL 20
RPPreacherAsked:
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digitapConnect With a Mentor Commented:
To clarify, the sonicwall failover out the DSL is fine, it's the connection out the Cisco that is experiencing the latency, correct?  Does any traffic go through the sonicwall other than when in failover?
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RPPreacherAuthor Commented:
Yes.  Your are correct.  The DSL is an empty line.

I hooked directly into the fiber (bypassing the Cisco ASA) and the CRM works great.  I think its the ASA.

I opened a case with TAC so between EE and TAC, I'm sure I'll get somewhere.
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digitapCommented:
Well, I wouldn't be able to help with the Cisco.  I would only think of issues like speed/duplex at the WAN interface or possibly if you are running anything like a content filter on the Cisco.
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RPPreacherAuthor Commented:
No content filter. No duplex/speed issues
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digitapCommented:
OK...then we'll have to wait for a Cisco tech to jump on the question.
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Feridun KadirConnect With a Mentor Principal ConsultantCommented:
Perhaps the ASA is doing some form of weird protocol scanning/inspection on the Microsoft CRM URL.
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RPPreacherAuthor Commented:
I hate this but the problem just vanished.  No changes, nothing, just like magic.  Awarding point based on willingness to help
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RPPreacherAuthor Commented:
Thanks!
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digitapCommented:
glad it's working again and thanks for the points!
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