	[x] Posted via EE Mobile
	Search, ask, and monitor your questions on the go with EE Mobile. Visit Experts Exchange from your mobile device and never be out of touch again.

Question

	[x] Attachment Details

[x]

The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

The Grade of the Solution
The Zone Rank of the Expert Providing the Solution
The Number of Author and Expert Comments
The Number of Experts Contributing
The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!

6.5

SBS Causes Extreme Slowdown of Network

Asked by compsol1993 in SBS Small Business Server, Network Routers, Miscellaneous Networking

Hello

We have determined a SBS 2003 R2 server is causing a severe slowdown of our network. To rule out all other equipment, we connected only our router, a non-domain laptop, and the server to a 5-port 1Gbps switch (normally connected to a 24-port switch).

The laptop is configured statically to get DNS from the router, not the SBS server, and is using the router as the gateway. The SBS is not performing any router functions, it is just a server on the network with one NIC.

From the laptop, with the server NOT connected to the switch, our speeds are 3 Mbps down, 0.7 Mbps Up, ping time 55 ms (on speedtest). About 10 seconds after we connect the server to the network, speeds drop to 1 Mbps down, 0.05 Mbps Up, 3000 ms. Surfing is impossible, and accessing file share on the server is also very slow. If you watch the lights on the switch, the server does not blink anymore than the laptop did without the server connected.

Here is the odd part, this slowdown is much more evident in the afternoon. This made us think some scheduled task is causing the problem, so we checked and nothing is running. The server is also running Symantec AntiVirus Corporate Server, but we disabled all services related to Symantec, and slowdown still occurred.

We ran Wireshark to get an idea of the traffic, and the only thing noticeable was SMTP traffic, at no higher a rate than one of the other SBS servers we manage.

Any thoughts on what we can check next? We've swapped the network cables, ruled out the 24-port switch, as well as other devices on the network . The router is a standard Linksys sharing the internet, with no advanced routing enabled.

Thanks!

View the Solution FREE for 30 Days

20091111-EE-VQP-92 - Hierarchy / EE_QW_3_20080625

Hall of Fame

1. Mestha737,625
2. MPECSInc605,441
3. suppsaws512,398
4. alanhardisty386,674
5. demazter370,649
6. leew330,392
7. TechSoEasy305,318
8. RobWill286,283
9. tigermatt191,118
10. CrisHann...190,839
11. ormerodru...133,452
12. oBdA124,112
13. Oliver-P118,724
14. afoot114,266
15. dstewartjr100,629
16. dariusg83,172
17. Perry_IDITC81,750
18. acroment79,758
19. shauncro...74,072
20. KCTS69,150
21. bluntTony68,250
22. hypercat66,145
23. MCSA20...65,368
24. Rancy64,875
25. MarkMich...57,205

1. TechSoEasy7,472,095
2. RobWill1,495,704
3. leew1,017,609
4. MPECSInc991,076
5. suppsaws870,074
6. Sembee840,636
7. Mestha737,625
8. KCTS676,401
9. olafdc657,424
10. tigermatt561,323
11. ormerodru...394,915
12. alanhardisty386,674
13. demazter370,649
14. vico1283,657
15. Dave_AND257,120
16. redseatec...254,480
17. keith_ala...251,275
18. hypercat247,766
19. oBdA228,469
20. mwecom...212,134
21. kieran_b198,229
22. MarkMich...196,584
23. SysExpert191,084
24. CrisHann...190,839
25. MrMander...190,523

SBS Causes Extreme Slowdown of Network

Asked by compsol1993 in SBS Small Business Server, Network Routers, Miscellaneous Networking

About this solution