Thanks for the reply. Still struggling with this issue. I'm not real technical with IIS so I don't completely follow the logs but I'm working on shuffling through them. Appreciate any help.
2015-07-06 18:30:55 172.16.1.38 GET /ucwa/v1/applications/212244982991/events ack=244&low=300&medium=300&timeout=900&priority=1435683420&X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=94101804-6d8d-4317-8494-9bd30ab7b15f 443 - 10.250.32.37 ACOMO - 409
0 0 67437
2015-07-06 18:30:55 172.16.1.38 GET /ucwa/v1/applications/212244982991/events ack=244&low=15&medium=15&timeout=900&priority=1435683421&X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=86b58c1b-28c9-4960-bcab-08b14e20d22c 443 - 10.250.32.37 ACOMO - 200
0 0 937
2015-07-06 18:30:56 172.16.1.38 GET /ucwa/v1/applications/212244982991/people/contactsAndGroupsSubscription X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=e5de64d0-22c9-45aa-808f-b2d1d71c6a10 443 - 10.250.32.37 ACOMO - 200 0 0 0
2015-07-06 18:30:57 172.16.1.38 POST /ucwa/v1/applications/212244982991/people/presenceSubscriptions X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=5339ac80-858d-4200-b729-156376755f36 443 - 10.250.32.37 ACOMO - 201 0 0 46
2015-07-06 18:30:57 172.16.1.38 POST /ucwa/v1/applications/212244982991/people/contactsAndGroupsSubscription/startOrRefresh duration=60&X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=b336be39-c23c-450f-8e30-d4cc7ff0272b 443 - 10.250.32.37 ACOMO - 204 0 0 15
2015-07-06 18:30:58 172.16.1.38 GET /ucwa/v1/applications/212244982991/events ack=245&low=15&medium=15&timeout=900&priority=1435683422&X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=19feeba8-9b60-4d5f-91bb-acfa0e5a43fd 443 - 10.250.32.37 ACOMO - 200
0 0 2046
2015-07-06 18:30:59 172.16.1.38 POST /ucwa/v1/applications/212244982991/batch X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=aa9eca1f-9611-42f6-bd85-2a28ded6e560 443 - 10.250.32.37 ACOMO - 200 0 0 15
2015-07-06 18:30:59 172.16.1.38 POST /ucwa/v1/applications/212244982991/batch X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=7bd3ebbb-5765-4807-bde5-c5f1998ef638 443 - 10.250.32.37 ACOMO - 200 0 0 625
2015-07-06 18:30:59 172.16.1.38 GET /ucwa/v1/applications/212244982991/people/groups/nYZJrQA3cI6XoISD5lwidI6dpDziUQot_sY7Zy8_wsA= X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=f38596ce-7e09-42b5-96a1-293367812278 443 - 10.250.32.37 ACOMO - 200 0 0 15
2015-07-06 18:31:33 172.16.1.38 GET /ucwa/v1/applications/213595124232/events ack=14&low=1800&medium=1800&timeout=900&priority=1436126864&X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=bda19de2-774f-46ad-9263-0b79b271f512 443 - 70.199.174.27 Lync%202013/5.7.0.563+CFNetwork/711.3.18+Darwin/14.0.0
- 400 0 64 376969
2015-07-06 18:34:00 172.16.1.38 GET / X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=7e92953e-a1b5-40b8-92e3-97086517ba8a 443 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/43.0.2357.130+Safari/537.36
- 200 0 0 515
2015-07-06 18:34:04 172.16.1.38 GET /ucwa/v1/applications/212244982991/events ack=246&low=15&medium=15&timeout=900&priority=1435683423&X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=0d79e9a0-7019-4bc2-b895-02888c8c5192 443 - 10.250.32.37 ACOMO - 200
0 0 185812
2015-07-06 18:34:04 172.16.1.38 GET /ucwa/v1/applications/212244982991/people/mkerrick@crista.net/presence X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=bfce058b-3ddb-413e-b850-8dd64127279a 443 - 10.250.32.37 ACOMO - 200 0 0 15
2015-07-06 18:36:43 172.16.1.38 GET / - 80 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/43.0.2357.130+Safari/537.36 - 200 0 0 62
2015-07-06 18:36:43 172.16.1.38 GET /favicon.ico - 80 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/43.0.2357.130+Safari/537.36 http://lyncdiscover.crista.net/ 404
0 2 156
2015-07-06 18:36:54 172.16.1.38 GET / X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=612d3504-7e0b-4cb1-a39a-4afa2f5d97fa 443 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/43.0.2357.130+Safari/537.36
- 200 0 0 1874
2015-07-06 18:36:54 172.16.1.38 GET /favicon.ico X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=d6b460a0-3b1a-48be-a10c-57dc3e2fa1ed 443 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/43.0.2357.130+Safari/537.36
https://lyncdiscover.crista.net/ 200 0 0 140
2015-07-06 18:37:09 172.16.1.38 GET / X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=dad3b094-a3d1-4b2e-80e6-12f80482b68d 443 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/43.0.2357.130+Safari/537.36
- 403 0 0 62
2015-07-06 18:37:12 172.16.1.38 GET / X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=250eaf5c-1c15-4f3b-b321-3f9ddf20d5ec 443 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/43.0.2357.130+Safari/537.36
- 200 0 0 10687
2015-07-06 18:37:12 172.16.1.38 GET /favicon.ico X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=d997b7d0-81ba-4202-a5c6-d450b4cf4dc3 443 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/43.0.2357.130+Safari/537.36
https://meet.crista.net/ 200 0 0 62
2015-07-06 18:37:57 172.16.1.38 GET / X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=9f28a83f-4e0f-4e45-9606-fce320f7ccd2 443 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/43.0.2357.130+Safari/537.36
- 200 0 0 62
2015-07-06 18:38:17 172.16.1.38 GET /ucwa/v1/applications/212244982991/events ack=247&low=15&medium=15&timeout=900&priority=1435683424&X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=dda07d91-acc1-431c-98c6-bdacac654926 443 - 10.250.32.37 ACOMO - 200
0 0 252687
2015-07-06 18:38:17 172.16.1.38 POST /ucwa/v1/applications/212244982991/batch X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=43616c7e-17e5-49eb-adb1-89f1a63310ab 443 - 10.250.32.37 ACOMO - 200 0 0 15
2015-07-06 18:38:52 172.16.1.38 GET /ucwa/v1/applications/212244982991/events ack=248&low=15&medium=15&timeout=900&priority=1435683425&X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=c4a717f0-9cc0-44d3-b9ff-003b618c2ac3 443 - 10.250.32.37 ACOMO - 200
0 0 35109
2015-07-06 18:38:52 172.16.1.38 GET /ucwa/v1/applications/212244982991/people/dbrooks@crista.net/presence X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=be29695e-92a1-4a43-a271-fe5261f89ad4 443 - 10.250.32.37 ACOMO - 200 0 0 15
2015-07-06 18:41:05 172.16.1.38 GET /ucwa/v1/applications/212244982991/events ack=249&low=300&medium=300&timeout=900&priority=1435683426&X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=f4b698e5-b380-49a8-b677-d1e62adb0517 443 - 10.250.32.37 ACOMO - 200
0 0 133250
2015-07-06 18:41:17 172.16.1.38 GET /ucwa/v1/applications/213595124232/events ack=14&low=1800&medium=1800&timeout=900&priority=1436126865&X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=0a20114f-9c97-4401-ba35-3a9033007681 443 - 70.199.174.27 Lync%202013/5.7.0.563+CFNetwork/711.3.18+Darwin/14.0.0
- 400 0 64 583047
2015-07-06 18:43:44 172.16.1.38 GET / X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=39b5c209-4d6e-4c5d-95e0-1a444cb5f2da 443 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/43.0.2357.130+Safari/537.36
- 200 0 0 140
2015-07-06 18:43:45 172.16.1.38 GET / X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=4f6581ab-1264-44c4-a6c1-182144e38ee1 443 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/43.0.2357.130+Safari/537.36
- 200 0 0 78
2015-07-06 18:43:45 172.16.1.38 GET / X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=5ddc031f-0077-496a-85fc-e6a48d891e41 443 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/43.0.2357.130+Safari/537.36
- 200 0 0 93
2015-07-06 18:43:54 172.16.1.38 GET / X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=e9901b16-1826-4fc5-a52e-f260418f46f5 443 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64;+Trident/7.0;+rv:11.0)+like+Gecko - 200 0 0 62
2015-07-06 18:43:55 172.16.1.38 GET / X-ARR-CACHE-HIT=0&X-ARR-LOG-ID=0c409253-ec1e-4417-b2ef-826f22cdc0c8 443 - 184.77.255.85 Mozilla/5.0+(Windows+NT+10.0;+WOW64;+Trident/7.0;+rv:11.0)+like+Gecko - 200 0 0 78